This high-performance regulator boasts a balanced first stage coupled with a pneumatically balanced second stage. The smooth, quiet breath is sure to enhance your diving enjoyment. Designed for water temps above 50°F / 10°C. The Comfo-bite™ mouthpiece, with its patented bridge, virtually eliminates jaw-fatigue. Compatible with EAN40 out of the box.

First Stage: The first stage is a balanced diaphragm type that offers consistent performance from start of dive until end of dive, regardless of depth. 1 HP port and 4 MP ports are available.  Available in yoke only.

Second Stage: Pneumatically-balanced second stage results in smooth, easy breathing. The large purge button on the AT20 is easy to operate even with thick gloves. The integrated venturi control provides a performance boost at depth while preventing unwanted freeflow at the surface. An extremely efficient exhaust valve improves the breathing performance of the regulator.  The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue.  Offers a compact, integrated exhaust tee.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung dealer, for more information.

This high-performance regulator boasts an over-balanced first stage coupled with a pneumatically balanced second stage. The smooth, quiet breath is sure to enhance your diving enjoyment. Suitable for coldwater use thanks to its first stage environmental dry seal and second stage heat exchanger. Compatible with EAN40 out of the box.

First Stage: Uses the DS4 first stage. Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth. 1 HP port and 4 MP ports are available. An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.

Second Stage: Pneumatically-balanced second stage results in smooth, easy breathing. The large purge button on the ATX is easy to operate even with thick gloves. The integrated venturi control provides a performance boost at depth while preventing unwanted freeflow at the surface. An extremely efficient exhaust valve improves the breathing performance of the regulator. The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue. A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water. Offers a compact, integrated exhaust tee.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

Unique over-balanced diaphragm design – as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth. Compact environmentally dry sealed diaphragm system completely eliminating the maintenance issues associated with silicone, oil or grease filling. Break through, innovative over-molded first-stage endcap & environmental diaphragm helps prevent ice build-up that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage. Easy to grip DIN hand-wheel or over-molded yoke hand-wheel, only requires one hand to release. DIN, Yoke and M26 Thread available, 300bar, 232bar and M26 300bar (O2) respectively. 5 x 3/8” UNF (Unified National Fine) medium pressure ports. 2 x 7/16” UNF high pressure ports. The 5th 3/8” UNF medium pressure port includes a protective bumper when not in use. Forged first stage body with heat exchanging ribs for maximum thermal performance. Angled HP ports for optimal hose routing and fitting of transmitters. Forged rotating turret with medium pressure ports in a parallel direction for improved hose orientation. Ribbed diaphragm clamp for improved heat exchange in cold water conditions. Double swivel hose for greater freedom of movement and comfort. Tested for Octopus use - EN250A to 60 meters cold water. Nitrox/Oxygen compatible – Up to 40% O2 outside the EU (European Union), within the EU anything above 21% O2 must use an M26 Connection. Simple to use with no dive adjustment controls and reduced chance of free flow occurrence, pre-settable cracking effort or venturi control by an Apeks approved qualified technician. High performance pneumatically balanced lever operated poppet valve. Large, diver friendly self-flushing controllable purge button. Front cover with over-molded elastomer incorporates a formed chrome plated brass plate improving durability of the second stage. Large protective elastomer bumpers on the side and on the top to protect the second stage from impacts and scratches in the most vulnerable places. Reversible second stage for either a left or right hand gas supply configuration. A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water. Removable bungee necklace with lock out feature for retaining second stage in the mouth of an unconscious diver during rescue and to assist with jaw fatigue. Comfo-bite mouthpiece. Flexible nylon braided hose has better cold water performance than traditional rubber hose. Simple service kits. Easy to service. Color coded octopus hose.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

The TEK3 utilizes all of the proven technology contained within the Apeks range of first stage regulators. The ports on the TEK3 first stages are oriented so that all hoses will route downward to provide the streamlined configuration required by technical divers. Allows unrestricted accessibility to the cylinder valves when using a twin cylinder set up. Features an innovative Diver Changeable Exhaust system (DCE). The system gives the diver the ability to change from a small exhaust tee to a large exhaust tee. This gives the user a choice, wider exhaust tee for minimal bubble interference (essential for underwater photography) and narrow exhaust tee for a smaller compact comfortable regulator. The regulator is supplied with both sets of exhaust tees. The second stages can be converted from a right-handed hose configuration to a left-handed configuration. The process of changing the regulator to a left-handed configuration is both quick and simple. However this procedure must ONLY be performed by an APEKS Authorised Service Technician. Available with DIN connection only. Outstanding cold water performance (below 10 C / 50 F). Compatible with EAN40 out of the box.

First Stage: Compact, solid one-piece body. Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth. 1 HP port and 3 MP ports are all angled downward. An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out. Maximum working pressure is 300 BAR (4350 psi).

Second Stage: Pneumatically-balanced second stage results in smooth, easy breathing. The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used - press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the center for the full effect of the purge, i.e. when regulator clearing etc. The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation. Easy-to-grip opening effort control knob keeps the diver in control. The second stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mold, yeast and algae. A silicone exhaust valve improves the breathing performance of the regulator. The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue. A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

Features an innovative Diver Changeable Exhaust system (DCE). This system gives the diver the ability to change from a small exhaust tee to a large exhaust tee. This gives the user a choice, wider exhaust tee for minimal bubble interference (essential for underwater photography) and narrow exhaust tee for a smaller compact comfortable regulator. The regulator is supplied with both sets of exhaust tees. An optional 5th port is available which features the additional bonus of an integrated heat exchanger (available on the Tungsten, XTX200 and XTX100 first stages). Can be converted from a right-handed hose configuration to a left-handed one. The process of changing the regulator to a left-handed configuration is both quick and simple. However this procedure must ONLY be performed by an APEKS Authorised Service Technician. Available in yoke or DIN configuration. Braided flexi-hoses are now standard on all models. These hoses are lighter weight, more flexible and more durable. Suitable for coldwater use (below 10 C / 50 F). Compatible with EAN40 out of the box.

First Stage: FSR style first stage. Highly polished bright chrome plating. Compact one piece body. 4 angled medium pressure ports, 4 x 3/8” UNF. 2 angled high pressure ports, 2 x 7/16” UNF. Optional 5th port. Removable ARCAP valve seat. Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth. An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out

Second Stage: Pneumatically-balanced second stage results in smooth, easy breathing. The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used - press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the center for the full effect of the purge, i.e. when regulator clearing etc. The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation. Easy-to-grip opening effort control knob keeps the diver in control. The second stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mold, yeast and algae. A silicone exhaust valve improves the breathing performance of the regulator. The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue. A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

Green and yellow cosmetic pieces clearly identify that this regulator is dedicated for high-percentage oxygen use. The compact DS4 first stage has four medium-pressure ports and one high-pressure port (it does not feature the rotating turret found on the DST first stage). Features an innovative Diver Changeable Exhaust system (DCE). This system gives the diver the ability to change from a small exhaust tee to a large exhaust tee. This gives the user a choice, wider exhaust tee for minimal bubble interference (essential for underwater photography) and narrow exhaust tee for a smaller compact comfortable regulator. Only the narrow exhaust tee is supplied with the regulator. Can be converted from a right-handed hose configuration to a left-handed one. The process of changing the regulator to a left-handed configuration is both quick and simple. However, this procedure must ONLY be performed by an APEKS Authorised Service Technician. Available in DIN configuration only. A braided flexi-hose comes standard. These hoses are lighter weight, more flexible and more durable. Suitable for coldwater use (below 10 C / 50 F). This regulator is suitable for use with up to 100% oxygen.

First Stage: DS4 first stage. Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth. 1 HP port and 4 MP ports are angled for optimum hose routing. An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.

Second Stage: Pneumatically-balanced second stage results in smooth, easy breathing. The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used - press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the center for the full effect of the purge, i.e. when regulator clearing etc. The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation. Easy-to-grip opening effort control knob keeps the diver in control. The second stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mold, yeast and algae. A silicone exhaust valve improves the breathing performance of the regulator. The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue. A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

 The set contains: 2 ea. XTX50 DIN regulators with 5 port swivel turrets. One XTX50 has a 83” / 210cm hose. One XTX50 has a 24” / 60cm hose. 2 ea. custom length MP inflation hoses (one for buoyancy system, one for drysuit). 2 ea. brass pressure gauges with 6 inch hoses (units in PSI). 1 ea. 90° elbow fitting, 1 ea. bungee necklace, 1 ea. stainless steel clip, 2 sets of short exhaust ports. Regulator bag to hold all. Setup illustration, CD manual and quick start guide. The Apeks Sidemount Regulator Kit is the first CE approved sidemount kit specifically for this type of diving.

First Stage: Unique over-balanced, diaphragm design - as the diver descends, the over-balancing feature allows the medium pressure gas in the hose to increase at a rate faster than ambient. This results in superior performance at depth. An environmental dry system keeps water out of the main spring chamber thus preventing ice buildup and keeping silt and contamination out.

Second Stage: Pneumatically-balanced second stage results in smooth, easy breathing. The XTX purge buttons are large and easy to operate. A 2-stage progressive purge is used. Press the purge on the side for a lower flow rate, useful where more control is required such as filling lift bags etc, then press in the center for the full effect of the purge, i.e. when regulator clearing etc. The large venturi lever has a soft touch rubber grip, which makes it easier to locate and use. The lever reduces the amount of grit ingress and therefore resists any possible friction giving a smooth operation. Easy-to-grip opening effort control knob keeps the diver in control The 2nd stage is manufactured with active protection against infection as all molded parts are produced with an additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mold, yeast and algae. A silicone exhaust valve improves the breathing performance of the regulator. The Comfo-bite™ mouthpiece virtually eliminates jaw-fatigue. A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Records included in the Owner’s Manual CD or the Records can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

1st stage: The Calypso is compact, easy to pack and easy to store. High-Flow Piston Technology ensures great performance and excellent reliability. The large-diameter piston gives you more stable pressure out. Intuitive Design: Designed with large holes in end caps for easy cleaning and better thermal exchange and improved resistance to freezing. Second Filter: Includes a second filter, which can be change without dismantling and provides increased protection from polluted air. Open-yoke screw helps prevent water retention. Protects Against Shocks: The dust cap adjacent to the body protects the yoke inlet fittings against shocks.

2nd stage: Comfo-Bite mouthpiece is soft yet sturdy and reduces jaw fatigue with its unique palate bridge. Reusable Clip: Perform quick and easy mouthpiece changes using the removable, reusable clip. Venturi Knob Easy control: the in-line ergonomic Venturi knob lets you make precise adjustments, even while wearing gloves. Polyurethane Purge Cover: Rugged, durable polyurethane purge cover is abrasion-resistant, tear-resistant, minimizes inhalation effort, allows easy water purging, and helps protect against shock. Prevents Freeflow: Side openings prevent freeflow when facing into currents or riding a scooter. Easy Maintenance: Simple maintenance made possible by a reduced number of components and easy access to the exhaust valve through a clipped deflector. Deflector also splits up bubbles to decrease noise and protect the valve from expiration.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Year #5: Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

• Core Regulator

• 

  Discover the Core

• 

  Auto Closure Device (ACD)

• 

  Balanced First Stage

• 

  Pneumatically Balanced Second Stage

• 

  Comfobite Mouthpiece

• 

  Free Parts for Life Program

First Stage: When the first stage is not connected to a cylinder valve, the Auto Closure Device (ACD) keeps the inlet shut to protect the first stage internal parts from contamination and corrosive water. Preserves the internal lubrication. Keeps the inlet filter clean and dry. Safer for elevated percentages of oxygen. Exceptional cold-water performance is achieved by modernizing Aqua Lung's three anti-freeze properties: Where there's no moisture, there's no ice. The LEG3ND's integrated dry chamber keeps inner components clean and dry by isolating them from the outside environment. Deep ribs create a large heat exchange surface area that helps to prevent ice forming on the mechanism (+30% vs Glacia / +70% vs Legend 2). The new overmolded cap delays ice forming over the external diaphragm. Auto-Balanced (also known as Over-Balanced) Progressive increase of the working pressure to maintain optimum breathing efforts: Depending on the diver's depth, the working pressure of the first stage is automatically elevated to counteract the increased breathing air density. Ergonomically shaped DIN and YOKE screws made of a bi-material “Soft Grip” surface provide a better hold when installing or removing the first stage – especially with cold hands. Channeled YOKE screw to prevent water retention. Specialized ACD Dust cap attached to the regulator body to protect the inlet fitting and the ACD system from impacts or damage. Perfectly positioned HP and MP ports provide optimal hose routing.

Second Stage: New front cover opening channels allow water to flow sideways over the diaphragm. Radial openings to prevent freeflows when diving in stronger currents. Openings widened to reduce peak inspiratory flow by an impressive 20%. New overmolded exhaust cover made of elastomer with a “soft touch” effect. Overmolded air purge: Wide surface area makes regulator purging easier. Purge depth controller optimizes air flow with minimal effort. Patented Comfobite mouthpiece reduces jaw fatigue and secures the second stage more comfortably. Detachable and reusable mouthpiece clamp allows a quick and simple tool-free mouthpiece change without plastic waste. The enlarged heat exchanger helps to prevent freezing of the second stage mechanism. Air channel deflector: Directs the air flow evenly during the inhalation phase. Streamlined bi-material deflector lowers the exhalation effort Flexible and lightweight Aqua Flex hose with dual protectors.

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Year #5: Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

1st Stage: Travel-Ready. The reduced size and weight makes the Mikron the ideal choice for travelers. Auto-Closure Device Prevents corrosive water out of the first-stage inlet by automatically closing as the core is removed from the cylinder valve. This prevents internal lubrication from washing away and is safer for higher proportions of oxygen. Yoke or DIN Available in yoke (3,300psi/232 bar max.) or DIN (4,350psi/300 bar max.)

HP/MP Ports and "T" Shape: 2 HP ports (7/16”) and 4 MP ports (3/8”), perfectly oriented in a “T” shape for streamlined hose positioning, reduced exhalation effort, and sending bubbles out of your field of view.

Braided Hose: A braided hose provides flexibility, comfort and excellent transportability.

Standard Aqua Lung Parts: Since it uses standard Aqua Lung components, your local dive shop can more easily service it.

2nd Stage: Pneumatically balanced for smooth, easy breathing. Comfo-Bite Comfo-Bite mouthpiece is soft yet sturdy and reduces jaw fatigue with its unique palate bridge. Optimize Your Opening Effort With the “Mini/Maxi” adjustment knob, you can increase the opening effort, ideal for avoiding freeflow at the surface, or lower the inhalation effort, reducing the work of breathing.

Free Parts for Life Program: (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Year #5: Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the reecord can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

First Stage:  Balanced Diaphragm. The balanced diaphragm mechanism allows for ease of breathing and consistent performance while protecting internal moving parts from the environment. Lightweight Construction The Titan’s unique forged body uses less brass, making it more compact and lighter weight than other regulators. Polyurethane Purge Cover Rugged, durable polyurethane purge cover is abrasion-resistant, tear-resistant, minimizes inhalation effort, allows easy water purging, and helps protect against shock. HP/MP Ports and "T" Shape 2 HP ports (7/16”) and 4 MP ports (3/8”), perfectly oriented in a “T” shape for streamlined hose positioning, reduced exhalation effort, and sending bubbles out of your field of view. Water Retention Open-yoke screw helps prevent water retention.

Second Stage: Comfo-Bite mouthpiece is soft yet sturdy and reduces jaw fatigue with its unique palate bridge. Reusable Clip: Perform quick and easy mouthpiece changes using the removable, reusable clip. Clipped Deflector: Simple maintenance made possible by a reduced number of components and easy access to the exhaust valve through a clipped deflector. Deflector also splits up bubbles to decrease noise and protect the valve from expiration. Venturi Knob Easy control: the in-line ergonomic Venturi knob lets you make precise adjustments, even while wearing gloves. Polyurethane Purge Cover: Rugged, durable polyurethane purge cover is abrasion-resistant, tear-resistant, minimizes inhalation effort, allows easy water purging, and helps protect against shock. Material Strength: Made of strong polycarbonate. 

Free Parts for Life Program (Regulator Service Agreement)

The Free Parts for Life Program allows the customer to receive free parts when the regulator is due for overhaul. Free parts consist of the normal replacement items as found in the Regulator 1st & 2nd Stage Service Kits. Labor charges are not covered. Assuming the program guidelines are followed, the Free Parts for Life Program will apply to the life of the regulator and will significantly reduce the cost of ownership. This program is in addition to the standard product warranties outlined in the owner’s manual. The Free Parts for Life Program is a commitment by you (the Regulator owner), your Aqua Lung Dealer and Aqua Lung. To participate, you must be the original owner and have purchased the regulator from an Authorized Aqua Lung or Apeks America Dealer. The regulator must be brought to an Authorized Dealer at least once a year for inspection or overhaul according to the below schedule:

Year #1: Inspection

Year #2: Overhaul

Year #3: Inspection

Year #4: Overhaul

Year #5: Etc.

To keep the Free Parts for Life Program active, both inspections and overhauls need to be documented in the Annual Service & Inspection Record included in the Owner’s Manual CD or the Record can be found online. If an inspection or overhaul is missed, the regulator no longer qualifies for the Free Parts for Life program. Visit Water World SCUBA, your local Aqua Lung Dealer, for more information.

LIGHTWEIGHT WITH HEAVYWEIGHT PERFORMANCE: The B2 weighs just 2.5 pounds (yoke version), just 9 ounces more than the super lightweight T3.

B2 FIRST STAGE FEATURES: Chrome-plated Brass and 316 Stainless Steel Atomic exclusive balanced Jet Seat high-flow piston. Optional factory-sealed to prevent outside contamination from silt and sand. Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%. Ports: 2 HP fixed / 5 LP on swivel cap.

B2 SECOND STAGE FEATURES: All-Titanium construction and materials – same as the T3. Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures. Patented Atomic AFC – Automatic Flow Control. Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use. Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage. Hose features patented polished 316 Stainless Steel Atomic Comfort Swivel with Black PVD coating. Dual material second stage cover enables entire front to be used for purge. Elliptical exhaust valve dramatically reduces exhalation effort at depth. Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable. Optional color kit available.

2-YEAR / 300-DIVE SERVICE INTERVAL LIMITED LIFETIME WARRANTY

Which mark will you hit first? 2 years or 300 dives? You won’t even need think about recommended servicing until then. And the Atomic warranty is NOT contingent on proof of service. Metal parts are warranted against corrosion for life. Period.

WEIGHT: It’s a beast in the water, but not a burden for divers with 2.6 pounds first and second stage combined weight (yoke version).

M1 FIRST STAGE FEATURES: Factory ready for Nitrox to 50% or Oxygen mixes to 80% when special guidelines are followed. Chrome-plated Brass body and Monel key internal components. Atomic exclusive balanced Jet Seat high-flow piston. Freeze-protected and factory-sealed to prevent outside contamination from silt and sand. Ports: 2 HP fixed / 5 LP on swivel cap

M1 SECOND STAGE FEATURES: Designed for cold water diving featuring thermal heat sink and super-dry exhaust valve. Components made of precision-machined Brass with Zirconium plating and Titanium. Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage. Patented Atomic AFC – Automatic Flow Control. Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use. High-flow second stage case and lever design for easy breathing at all depths and tank pressures. Surge-protected front cover for high current scenarios. Super-wide exhaust deflector to disperse bubbles for enhanced visibility. Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable. Optional M1 color kit.

2-YEAR / 300-DIVE SERVICE INTERVAL LIMITED LIFETIME WARRANTY Extreme diving doesn’t mean extreme servicing. 2 years or 300 dives is plenty of time to log great adventures before recommended M1 servicing. Metal parts are warranted against corrosion for life. Period. The warranty is NOT contingent on proof of service.

WEIGHT: All this Stainless Steel durability weighs just 2.3 pounds (yoke version), making the ST1 an excellent travel companion.

ST1 FIRST STAGE FEATURES: Beautifully machined from a special Atomic grade solid 316 SS. Atomic exclusive balanced Jet Seat high-flow piston. Freeze-protected and factory-sealed to prevent outside contamination from silt and sand. Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%. Ports: 2 HP fixed / 5 LP on swivel cap

ST1 SECOND STAGE FEATURES: Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures. Patented Atomic AFC – Automatic Flow Control. Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use. Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage. Hose features patented Stainless Steel Atomic Comfort Swivel with Black PVD coating. Dual material second stage cover enables entire front to be used for purge. Elliptical exhaust valve dramatically reduces exhalation effort at depth. Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable. Optional ST1 color kit lets you express your style.

2-YEAR / 300-DIVE SERVICE INTERVAL LIMITED LIFETIME WARRANTY

How long would it take you to dive 300 dives? You don’t even need to think about servicing the ST1 until then. Metal parts are warranted against corrosion for life. Period. The warranty is NOT contingent on proof of service.

Developing the lightest regulator in the world requires heavy reliance on precision engineering and machining. First and second stage components are precision-machined from solid Titanium billets. The T3 first stage is designed using minimal material and machined from a solid piece of Titanium requiring 23 individual operations. All machining operations are performed in a single continuous milling session at our own Atomica manufacturing facility. That means each component is carefully and expertly crafted under our watchful eyes to conform to only the most exacting standards.

INCREDIBLY LIGHTWEIGHT: The LIGHTEST regulator in the world, combined weight of the Atomic T3 first & second stage is under 1.8 pounds (yoke version).

T3 FIRST STAGE FEATURES: Precision-machined from solid Titanium alloy billet. Minimalist yoke design is optimized to use the least amount of material for the lightest weight possible. Atomic exclusive balanced Jet Seat high-flow piston. Freeze-protected and factory-sealed to prevent outside contamination from silt and sand. Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%. Ports: 2 HP fixed / 5 LP on swivel cap.

T3 SECOND STAGE FEATURES: Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures. Patented Atomic AFC – Automatic Flow Control. Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use. Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage. Hose features patented all-Titanium Atomic Comfort Swivel with Black PVD coating. Dual material second stage cover enables entire front to be used for purge. Elliptical exhaust valve dramatically reduces exhalation effort at depth. Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable. PVD coated metal-accent front cover ring. Deluxe padded travel bag.

DIVE UP TO 3 YEARS OR 300 DIVES WITHOUT REQUIRED SERVICING

Divers deeply admire many exclusive features of Atomic second stages that make diving easier. One of the most acclaimed is the Atomic Comfort Swivel which allows 30° rotational movement without hose binding or kinking. The T3 Comfort Swivel is all-Titanium with black PVD coating for the highest level of corrosion-resistance you can take in the ocean. Once you dive more comfortably with it, you’ll wonder why no one else ever thought of it. (US Patent No. 7,188,869)

LIGHTWEIGHT AND PERFECT FOR TRAVEL. The Z2 packs a lot of performance into a 2.6 pound package (yoke version).

Z2 FIRST STAGE FEATURES: Chrome-plated Brass and 316 Stainless Steel Atomic exclusive balanced Jet Seat high-flow piston. Optional factory-sealed to prevent outside contamination from silt and sand. Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%. Ports: 2 HP fixed / 7 LP on fixed cap.

Z2 SECOND STAGE FEATURES: Precision-machined Brass with Zirconium plating and Titanium components. Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures. Patented Atomic AFC – Automatic Flow Control. Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use. Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage. Dual material second stage cover enables entire front to be used for purge. Elliptical exhaust valve dramatically reduces exhalation effort at depth. Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable.

2-YEAR / 300-DIVE SERVICE INTERVAL LIMITED LIFETIME WARRANTY: Metal parts are warranted against corrosion for life. Period. The Atomic warranty is NOT contingent on proof of service. And even the recommended service interval of 2 years or 300 dives gives you a lot of dive time before taking your regulator in for a check-up

LIGHTWEIGHT AND PERFECT FOR TRAVEL. The Z3 packs a lot of performance into a 2.6 pound package (yoke version).

Z3 FIRST STAGE FEATURES: Chrome-plated Brass and 316 Stainless Steel. Atomic exclusive balanced Jet Seat high-flow piston. Optional factory-sealed to prevent outside contamination from silt and sand. Nitrox ready – approved for non-dedicated EAN use with mixtures up to 40%. Ports: 2 HP fixed / 7 LP on fixed cap.

Z3 SECOND STAGE FEATURES: Precision-machined Brass with Zirconium plating and Titanium components. Pneumatically-balanced poppet, high-flow case and lever design for easy breathing at all depths and tank pressures. Patented Atomic AFC – Automatic Flow Control. Soft overmolded Rapid Adjustment Knob for manual detuning in special situations such as surf entries or octo use. Patented Atomic Titanium Seat Saving Dynamic Orifice maintains crisp like-new factory tuning and prevents damage during storage. Z3 hose features patented Brass Atomic Comfort Swivel with Black PVD coating. Dual material second stage cover enables entire front to be used for purge. Elliptical exhaust valve dramatically reduces exhalation effort at depth. Dual silicone comfort fit mouthpiece with tear-resistant bite tabs – both comfortable and durable. Z3 optional color kit available.

2-YEAR / 300-DIVE SERVICE INTERVAL LIMITED LIFETIME WARRANTY

Metal parts are warranted against corrosion for life. Period. The Atomic warranty is NOT contingent on proof of service. And even the recommended service interval of 2 years or 300 dives gives you a lot of dive time before taking your regulator in for a check-up

A regulator must possess a set of functions which are unaffected by the different environments it will see during its lifetime. Examples of these functions include inhalation resistance, exhalation bubble distraction, noise and leak tightness – to name just a few. Different environments such as cylinder pressure, diving attitude, depth, temperature, gas, type of water, the diver can have an effect on these functions. When a new regulator is released on the market, it has to pass the EN 250 test. This test represents one single environment; the manufacturer may have managed to test perhaps another hundred such situations, which is good but not necessarily enough. Only after years and years of actual use by divers around the world will the manufacturer collect all the information which can guarantee a perfect performance under all circumstances. This of course, takes time... The Poseidon Cyklon Junior was introduced in 1958. In small steps, it has been gradually improved every year, based on both divers’ experiences and technological evolution. And so it continues. The expression “been there – done that” applies to The Poseidon Cyklon more than to any other regulator on the market.

Your regulator is life support equipment and it should regularly undergo maintenance service to minimize the risk of failure, accidents and injury. We recommend that maintenance service should be performed about once every 100 dives or biannual, whatever comes first. Maintenance service should be performed by a service technician that is certified to service Poseidon equipment and only Poseidon original parts should be used.

A regulator must possess a set of functions which are unaffected by the different environments it will see during its lifetime. Examples of these functions include inhalation resistance, exhalation bubble distraction, noise and leak tightness – to name just a few. Different environments such as cylinder pressure, diving attitude, depth, temperature, gas, type of water, the diver can have an effect on these functions. When a new regulator is released on the market, it has to pass the EN 250 test. This test represents one single environment; the manufacturer may have managed to test perhaps another hundred such situations, which is good but not necessarily enough. Only after years and years of actual use by divers around the world will the manufacturer collect all the information which can guarantee a perfect performance under all circumstances. This of course, takes time... The Poseidon Cyklon Junior was introduced in 1958. In small steps, it has been gradually improved every year, based on both divers’ experiences and technological evolution. And so it continues. The expression “been there – done that” applies to The Poseidon Cyklon more than to any other regulator on the market.

Your regulator is life support equipment and it should regularly undergo maintenance service to minimize the risk of failure, accidents and injury. We recommend that maintenance service should be performed about once every 100 dives or biannual, whatever comes first. Maintenance service should be performed by a service technician that is certified to service Poseidon equipment and only Poseidon original parts should be used.

A regulator must possess a set of functions which are unaffected by the different environments it will see during its lifetime. Examples of these functions include inhalation resistance, exhalation bubble distraction, noise and leak tightness – to name just a few. Different environments such as cylinder pressure, diving attitude, depth, temperature, gas, type of water, the diver can have an effect on these functions. When a new regulator is released on the market, it has to pass the EN 250 test. This test represents one single environment; the manufacturer may have managed to test perhaps another hundred such situations, which is good but not necessarily enough. Only after years and years of actual use by divers around the world will the manufacturer collect all the information which can guarantee a perfect performance under all circumstances. This of course, takes time... The Poseidon Cyklon Junior was introduced in 1958. In small steps, it has been gradually improved every year, based on both divers’ experiences and technological evolution. And so it continues. The expression “been there – done that” applies to The Poseidon Cyklon more than to any other regulator on the market.

Your regulator is life support equipment and it should regularly undergo maintenance service to minimize the risk of failure, accidents and injury. We recommend that maintenance service should be performed about once every 100 dives or biannual, whatever comes first. Maintenance service should be performed by a service technician that is certified to service Poseidon equipment and only Poseidon original parts should be used.

A regulator must possess a set of functions which are unaffected by the different environments it will see during its lifetime. Examples of these functions include inhalation resistance, exhalation bubble distraction, noise and leak tightness – to name just a few. Different environments such as cylinder pressure, diving attitude, depth, temperature, gas, type of water, the diver can have an effect on these functions. When a new regulator is released on the market, it has to pass the EN 250 test. This test represents one single environment; the manufacturer may have managed to test perhaps another hundred such situations, which is good but not necessarily enough. Only after years and years of actual use by divers around the world will the manufacturer collect all the information which can guarantee a perfect performance under all circumstances. This of course, takes time... The Poseidon Cyklon Junior was introduced in 1958. In small steps, it has been gradually improved every year, based on both divers’ experiences and technological evolution. And so it continues. The expression “been there – done that” applies to The Poseidon Cyklon more than to any other regulator on the market.

Your regulator is life support equipment and it should regularly undergo maintenance service to minimize the risk of failure, accidents and injury. We recommend that maintenance service should be performed about once every 100 dives or biannual, whatever comes first. Maintenance service should be performed by a service technician that is certified to service Poseidon equipment and only Poseidon original parts should be used.

A regulator must possess a set of functions which are unaffected by the different environments it will see during its lifetime. Examples of these functions include inhalation resistance, exhalation bubble distraction, noise and leak tightness – to name just a few. Different environments such as cylinder pressure, diving attitude, depth, temperature, gas, type of water, the diver can have an effect on these functions. When a new regulator is released on the market, it has to pass the EN 250 test. This test represents one single environment; the manufacturer may have managed to test perhaps another hundred such situations, which is good but not necessarily enough. Only after years and years of actual use by divers around the world will the manufacturer collect all the information which can guarantee a perfect performance under all circumstances. This of course, takes time... The Poseidon Cyklon Junior was introduced in 1958. In small steps, it has been gradually improved every year, based on both divers’ experiences and technological evolution. And so it continues. The expression “been there – done that” applies to The Poseidon Cyklon more than to any other regulator on the market.

Your regulator is life support equipment and it should regularly undergo maintenance service to minimize the risk of failure, accidents and injury. We recommend that maintenance service should be performed about once every 100 dives or biannual, whatever comes first. Maintenance service should be performed by a service technician that is certified to service Poseidon equipment and only Poseidon original parts should be used.

Controlling the power of a massive air flow, astonishingly reaching some 2100 litres/minute is an engineering challenge. The solution to this was to obtain a precision regulation, keeping breathing pressure to within +/- 5 mm.w.c throughout the inhalation cycle, regardless of depth and demand. Called a servo-assisted valve, it works in the same way as does the power steering you may have on your car – it’s all about compensation. Prior to diving, when you pressurize the regulator, the main blue bladder valve is in ated with the interstage pressure, along with all inner volumes including the upstream side of the servo valve. When this is done a “swoshing” sound of streaming air is heard. The system is then activated. On inhalation, the forces from the inhalation diaphragm easily overcome the light forces to crack open or “tilt” the servovalve and in turn evacuate all inner volumes. The main blue bladder valve then collapses and in turn lets an amount of gas out, corresponding to the actual demand. This technology ensures that the lightest possible effort can result in an almost limitless amount of gas on inhalation. All the more astonishing is the fact that Poseidon introduced this technology to the market as far back as 1981. The Jetstream: traditionally popular with technical divers as well as the Swedish and US navies. An easy breathe at any depth, the second stage incorporates a safety valve that allows you to continue to breathe normally in the unlikely event of abnormally high pressure air being delivered to the second stage. Approved to EN250 cold water standard.

Your regulator is life support equipment and it should regularly undergo maintenance service to minimize the risk of failure, accidents and injury. We recommend that maintenance service should be performed about once every 100 dives or biannual, whatever comes first. Maintenance service should be performed by a service technician that is certified to service Poseidon equipment and only Poseidon original parts should be used.

Controlling the power of a massive air flow, astonishingly reaching some 2100 litres/minute is an engineering challenge. The solution to this was to obtain a precision regulation, keeping breathing pressure to within +/- 5 mm.w.c throughout the inhalation cycle, regardless of depth and demand. Called a servo-assisted valve, it works in the same way as does the power steering you may have on your car – it’s all about compensation. Prior to diving, when you pressurize the regulator, the main blue bladder valve is in ated with the interstage pressure, along with all inner volumes including the upstream side of the servo valve. When this is done a “swoshing” sound of streaming air is heard. The system is then activated. On inhalation, the forces from the inhalation diaphragm easily overcome the light forces to crack open or “tilt” the servovalve and in turn evacuate all inner volumes. The main blue bladder valve then collapses and in turn lets an amount of gas out, corresponding to the actual demand. This technology ensures that the lightest possible effort can result in an almost limitless amount of gas on inhalation. All the more astonishing is the fact that Poseidon introduced this technology to the market as far back as 1981. The Jetstream: traditionally popular with technical divers as well as the Swedish and US navies. An easy breathe at any depth, the second stage incorporates a safety valve that allows you to continue to breathe normally in the unlikely event of abnormally high pressure air being delivered to the second stage. Approved to EN250 cold water standard.

Your regulator is life support equipment and it should regularly undergo maintenance service to minimize the risk of failure, accidents and injury. We recommend that maintenance service should be performed about once every 100 dives or biannual, whatever comes first. Maintenance service should be performed by a service technician that is certified to service Poseidon equipment and only Poseidon original parts should be used.

First Stage: Balanced diaphragm design and the environmentally sealed ambient chamber ensure top performance in any condition. Redesigned environmental seal cap and yoke knob enhance ergonomics & design aesthetics. Percision machined neoflon seat harder more reliable material, keeping you diving longer. First Stage Materials: Body: Brass O-rings: Nitrile Seat: Neoflon (PCTFE) HP Valve: Stainless Steel. 

Second Stage: New inhalation diaphragm provides superior tear strength and improved response time to breathing (super soft silicone molded over a low friction disk). Improved exhaust valve ensures dryness and a lower exhalation effort. Seat-saving orifice, compliments of Atomic Aquatics, retracts when not in use - extending the life of the breathing tube seat. (#5,803,073) Seat comprised of soft silicone molded over a metal insert to deliver the firmness required for an airtight seal while maintaining the necessary elasticity to prevent leaking. Redesigned front cover and inhalation effort control knob use co-molded components that provide the necessary grip, soft touch and ease of use. Available in several color kits. Zirconium-plated inlet tube and heat sink for superior corrosion resistance. Redesigned heat sink dramatically increases surface area, aiding in the heat exchange necessary to avoid freeze-up. Co-molded silicone mouthpiece for better fit and less jaw fatigue. Second Stage Materials: Cover: TPU Case: Nylon 12 Poppet Seat: 316 SS insert with silicone overmold O-rings: Nitrile Diaphragm: Elastomeric Polymer Exhaust Valve: Silicone

1. Your regulator is guaranteed against defects in materials and workmanship. This warranty does not cover normal wear, or damage from accident, abuse, neglect, alterations, improper usage, or failure to follow reasonable care and maintenance as outlined in this manual. Under this limited warranty, Zeagle will either repair or replace, at its sole option, any original equipment or parts that fail to perform as intended. To validate your warranty, you must fill out and return your warranty registration card to Zeagle within 30 days of purchase. This Limited Lifetime Warranty excludes filters, hoses, O-rings, diaphragms and mouthpieces, which are warranted for two years from the regulator’s date of purchase.  2. For proof of original ownership, you must save the original purchase receipt. It is your record of when and where the regulator was purchased. It also lets you know when your annual service should be performed. 3. To keep the original-owner limited lifetime warranty in effect, you must have your regulator inspected and serviced annually, within 30 days before or after the anniversary of the purchase date. This servicing must be performed by an authorized Zeagle dealer. Save the receipts from this servicing for your records. 4. This limited warranty applies only to the original purchaser, and then only to certified divers. 5. This limited warranty applies only to regulators sold through authorized Zeagle Systems dealers. See the Zeagle website for full warranty details.