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he pneumatically-balanced ZEO is an engineering marvel of precision, durability and comfort.

Its durable chrome-plated marine brass metal valve delivers a phenomenal breathing experience, improves cold-water performance and helps recirculate moisture from exhalation to prevent dry mouth.
The breathing adjustment gives the diver a wide range of control to precisely set airflow throughout the dive.

The ZEO comes standard with an in-line hose swivel, inhalation effort control, dynamic adjustment technology dive/ pre-dive switch and a super comfortable orthodontic mouth piece featuring an inline ball swivel on the hose connection to eliminate the binding that can cause jaw fatigue.

The cold-forged, over-balanced diaphragm FDX-i first stage is environmentally sealed. The in-line design limits the pressure loss inherent in “L” type first stage designs making the FDX-i more efficient and lighter due to its compact form.

Designed for Depth.
Try telling an engineer that a design, any design, can’t be made… better. In our case that challenge led directly to the ZEO.

We started with the EOS, a legendary regulator known for its comfort and breathing profile and ended up with the ZEO. Like its predecessor the EOS, the ZEO is also a phenomenal breather allowing the diver extensive control over the air flow profile at any depth. It takes this design one step further however by incorporating a tough and corrosion resistant chrome plated marine brass valve that has better cold water performance and even a better breathing experience. The all metal valve encourages the condensation of water vapor from your exhalation on the valve housing. When you inhale that condensed water vapor circulates with the airflow and helps to reduce “dry mouth” and increase the overall level of comfort. The ZEO also comes with our patented Dynamic Adjustment technology, diver inhalation effort adjustment controls, dive/pre-dive switch, swivel and a super comfortable orthodontic mouth piece.

The ZEO second stage comes paired with our first stage FDX-i. The cold forged, over-balanced diaphragm FDX-i is environmentally sealed. It’s in-line design limits the pressure loss inherent in “L” type first stage designs making the FDX-i more efficient and lighter due to it’s compact form.

The ZEO/FDX-i combination is everything you need for a sublime breathing experience at any depth and in any environment. From the balmy tropical waters of the Caribbean to the extremes of cold water diving’s best dive sites, the ZEO will perform with reliability, consistency and comfort and makes taking your favorite regulator literally anywhere, that much easier.

Second Stage ZEO
Pneumatically balanced second stage automatically maintains consistent inhalation effort throughout dive
Diver adjustable inhalation effort allows the diver to control a desired level of airflow at any time.
Patented Dynamic Adjustment automatically maintains inhalation effort throughout the dive
Adjustable Venturi Switch (A.V.S.) for simple dive/pre-dive adjustment
Inline ball swivel reduces jaw fatigue
Orthodontic mouthpiece
Paired with the FDX-i first stage

First Stage FDX-i
The FDX-i in-line design provides an improved flow rate, greatly reduced weight and more ergonomic port positioning for better hose routing when compared to the classic right angle first stages.

Precision Cold Forged
Reduced weight
Pneumatically balanced – consistent performance at any depth
Environmentally Sealed diaphragm – cold water ready
4 Low Pressure and 2 High Pressure Ports
Angled ports for ideal hose routing
Improved flow rate over standard right angle first stages.

Specs 2nd stage
FEATURE & FUNCTIONS ZEO SECOND STAGE (METAL VALVE SYSTEM)
Valve Type DEMAND
Adjustment(s) KNOB / PRE-DIVE SWITCH
Balancing System PNEUMATIC
Integrated Purge Button 
Mouthpiece ORTHODONTIC W / TABS
Nitrox Compatibility STANDARD TO 40%
Ambidextrous NO
Integrated Switch 
Weight (without hose) 7.2 OUNCE
Dimensions (front profile) 2.3 INCH x 3 INCH (OVAL SHAPE)
Minimum Creaking Effort DIVER ADJUSTABLE
Factory Set Inhalation Effort 0.0~2.5 IWC
Work of Breathing 0.86
First Stage 
FDX-i

Specs 1st stage
FEATURES & FUNCTIONS FDX-i
Valve Type OVER-BALANCED DIAPHRAGM
Primary Material FORGED MARINE BRASS
Low Pressure Ports 4
High Pressure Ports 2
Nitrox Compatibility STANDARD TO 40%
300 BAR DIN Fitting OPTIONAL
Sealed Valve Design 
Environmental Protection 
Weight 21 OUNCES
Factory Set Intermediate Pressure 138-142 PSI
Pressure Drop 9 PSI

The Delta 5 is the next step in a long line of remarkably reliable, durable and smoothly breathing regulators to carry that name. 

Sure, we’ve given it an updated look, but that’s not all. 
Like the deltas before it the 5 comes standard with our patented Dynamic Adjustment Technology that, once set by the diver, provides consistent airflow at any depth. 
It also comes standard with a dive/pre-dive switch and a super comfortable orthodontic mouth piece. 
This latest edition though has an updated, all metal pneumatic valve providing super smooth breathing performance in any condition.

Over 20 years ago we gave ourselves a challenge to design a rugged and reliable all-purpose regulator that would be at home in cold water or warm and breathe just as good at 30 feet as it did at 130. We called that regulator the Delta, and we still do.

The Delta5 is the next step in a long line of remarkably reliable, durable and smoothly breathing regulators to carry that name. Sure, we’ve given it an updated look, but that’s not all.
Like the Delta’s before it, the 5 comes standard with our patented Dynamic Adjustment Technology that, once set by the diver, provides consistent airflow at any depth.
They also come standard with a dive/pre-dive switch and a super comfortable orthodontic mouthpiece.
This latest edition though has an updated, all metal pneumatic valve providing super smooth breathing performance in any condition.
We have also added a heat exchanger, positioned on the hose connection to the 2nd stage, to further increase its already stellar cold water performance.

We’ve paired the Delta5 with the new eDX.
This top-of-the-line cold forged, over-balanced diaphragm first stage is environmentally sealed and comes with 4 low-pressure and 2 high-pressure ports. It also comes equipped with a heat exchanger for added cold water performance.

Pneumatically balanced all-metal valve.
Dive/pre-dive switch & patented dynamic airflow adjustment control.
Mechanical Purge button for consistent air-flow pressure on during purge.
Nitrox Compatibility – Standard to 40%.
Balanced diaphragm first stage eDX is environmentally sealed and cold-water ready.
Heat Exchanger for Improved cold-water performance.
Ergonomic exhalation venting.
Dimensions (Front Profile) – 2.5 inch diameter (circular).
Dual-material orthodontic mouthpiece with bite tabs.
Service Interval – 2 Year, Required.
Lifetime Warranty with Free Parts for Life.
Miflex Braided Hose – Supplied with complete models only.
Optional Universal Swivel Adapter – the optional Universal Swivel comes separate but can be easily installed with an adjustable torque wrench and 5 min of free time. Instructions are provided.

Specs
DELTA 5 2nd stage Available in Black & White
Adjustments Dive/pre-dive switch & Patented Dynamic airflow Adjustment control
Valve Type Pneumatically balanced all-metal valve
Heat Exchanger For enhanced cold-water performance
Mouthpiece Type Orthodontic w/ Bite Tabs
Nitrox Compatibility Standard to 40%
Swivel Adapter Optional
Dimensions Front Profile 2.5 inch diameter circular
Warranty Lifetime & Free Parts for Life
Service Interval 2 Year, Required

eDX Specs 1st stage Available in Yoke & DIN
Valve Type Over-Balanced Diaphragm
Pressure Ports LP 4, HP 2
Nitrox Compatibility Standard to 40%
Environmental Protection Sealed Valve Design
Warranty Lifetime & Free Parts for Life
Service Interval 2 Year, Required

Alpha 10 + CDX
De Alpha 10 combineert een geavanceerd luchtsysteem met een stevig en compact ontwerp. De pneumatisch gebalanceerde tweede trap vermindert de weerstand aanzienlijk, wat resulteert in moeiteloos ademen.

Een geweldige regulator met een uitstekende prijs-kwaliteitverhouding zonder concessies te doen aan de mogelijkheden.

STERKER VOOR LANGER
De lichtgewicht en compacte Alpha 10 is ontworpen om gebruiksvriendelijk te zijn, gemakkelijk te onderhouden en net als al onze uitrusting is hij gebouwd om lang mee te gaan. Hij wordt geleverd met een levenslange garantie en gratis onderdelen voor het leven.

MAKKELIJKER ADEMEN
Met een pneumatisch gebalanceerde tweede trap voor soepel ademen, ontworpen om te reageren op natuurlijke inademing en de weerstand te verminderen.

De beste prijs-prestatieverhouding in zijn klasse
Ontworpen om te voldoen aan de Class A-standaarden van de Amerikaanse marine
Voordelig in onderhoud
Verkrijgbaar met Miflex®-slang
Pneumatisch gebalanceerde demand valve
Geïntegreerde purgeerknop
Ergonomisch mondstuk
Nitrox-compatibiliteit - Standaard tot 40%
Gewicht (zonder slang) - 6 ounces
Afmetingen (vooraanzicht) - 2.9 inches

SPECS 2ND STAGE ALPHA 10 
Valve Type Pneumatically balanced demand
Mouthpiece Type Orthodontic w/ Bite Tabs
Nitrox Compatibility Standard to 40%
Swivel Adapter Optional
Dimensions (Front Profile) 2.66 inch diameter (circular)
Warranty Lifetime & Free Parts for Life
Service Interval 2 Year, Required

SPECS 1ST STAGE CDX & SPX Available in DIN & Yoke
Valve Type cDX Over-Balanced diaphragm
SPX Piston
Primary Material Machined, triple chrome marine brass
Angled Ports For ideal hose routing
Pressure Ports LP (4), HP (2)
Work of Breathing 1.23 Joules
Nitrox Compatibility Standard to 40%
Environmental Protection cDX Yes
sPX No
Warranty Lifetime & Free Parts for Life
Service Interval 2 Year, Required

The pneumatically-balanced ZEO is an engineering marvel of precision, durability and comfort.

Its durable chrome-plated marine brass metal valve delivers a phenomenal breathing experience, improves cold-water performance and helps recirculate moisture from exhalation to prevent dry mouth.
The breathing adjustment gives the diver a wide range of control to precisely set airflow throughout the dive.

The ZEO comes standard with an in-line hose swivel, inhalation effort control, dynamic adjustment technology dive/ pre-dive switch and a super comfortable orthodontic mouth piece featuring an inline ball swivel on the hose connection to eliminate the binding that can cause jaw fatigue.

The cold-forged, over-balanced diaphragm FDX-i first stage is environmentally sealed. The in-line design limits the pressure loss inherent in “L” type first stage designs making the FDX-i more efficient and lighter due to its compact form.

Designed for Depth.
Try telling an engineer that a design, any design, can’t be made… better. In our case that challenge led directly to the ZEO.

We started with the EOS, a legendary regulator known for its comfort and breathing profile and ended up with the ZEO. Like its predecessor the EOS, the ZEO is also a phenomenal breather allowing the diver extensive control over the air flow profile at any depth. It takes this design one step further however by incorporating a tough and corrosion resistant chrome plated marine brass valve that has better cold water performance and even a better breathing experience. The all metal valve encourages the condensation of water vapor from your exhalation on the valve housing. When you inhale that condensed water vapor circulates with the airflow and helps to reduce “dry mouth” and increase the overall level of comfort. The ZEO also comes with our patented Dynamic Adjustment technology, diver inhalation effort adjustment controls, dive/pre-dive switch, swivel and a super comfortable orthodontic mouth piece.

The ZEO second stage comes paired with our first stage FDX-i. The cold forged, over-balanced diaphragm FDX-i is environmentally sealed. It’s in-line design limits the pressure loss inherent in “L” type first stage designs making the FDX-i more efficient and lighter due to it’s compact form.

The ZEO/FDX-i combination is everything you need for a sublime breathing experience at any depth and in any environment. From the balmy tropical waters of the Caribbean to the extremes of cold water diving’s best dive sites, the ZEO will perform with reliability, consistency and comfort and makes taking your favorite regulator literally anywhere, that much easier.

Second Stage ZEO
Pneumatically balanced second stage automatically maintains consistent inhalation effort throughout dive
Diver adjustable inhalation effort allows the diver to control a desired level of airflow at any time.
Patented Dynamic Adjustment automatically maintains inhalation effort throughout the dive
Adjustable Venturi Switch (A.V.S.) for simple dive/pre-dive adjustment
Inline ball swivel reduces jaw fatigue
Orthodontic mouthpiece
Paired with the FDX-i first stage

First Stage FDX-i
The FDX-i in-line design provides an improved flow rate, greatly reduced weight and more ergonomic port positioning for better hose routing when compared to the classic right angle first stages.
Precision Cold Forged
Reduced weight
Pneumatically balanced – consistent performance at any depth
Environmentally Sealed diaphragm – cold water ready
4 Low Pressure and 2 High Pressure Ports
Angled ports for ideal hose routing
Improved flow rate over standard right angle first stages.

Specs 2nd stage
FEATURE & FUNCTIONS ZEO SECOND STAGE (METAL VALVE SYSTEM)
Valve Type DEMAND
Adjustment(s) KNOB / PRE-DIVE SWITCH
Balancing System PNEUMATIC
Integrated Purge Button 
Mouthpiece ORTHODONTIC W / TABS
Nitrox Compatibility STANDARD TO 40%
Ambidextrous NO
Integrated Switch 
Weight (without hose) 7.2 OUNCE
Dimensions (front profile) 2.3 INCH x 3 INCH (OVAL SHAPE)
Minimum Creaking Effort DIVER ADJUSTABLE
Factory Set Inhalation Effort 0.0~2.5 IWC
Work of Breathing 0.86
First Stage 
FDX-i

Specs 1st stage
FEATURES & FUNCTIONS FDX-i
Valve Type OVER-BALANCED DIAPHRAGM
Primary Material FORGED MARINE BRASS
Low Pressure Ports 4
High Pressure Ports 2
Nitrox Compatibility STANDARD TO 40%
300 BAR DIN Fitting OPTIONAL
Sealed Valve Design 
Environmental Protection 

The Alpha 10 packs an advanced air delivery system into a tough and compact design. Its pneumatically balanced second stage dramatically reduces resistance, resulting in truly effortless breathing.

A great value regulator with no compromises on capability.

TOUGHER FOR LONGER

The lightweight and compact Alpha 10 was designed to be easy to use, easy to service, and like all our gear, it was built to last. It comes with a lifetime warranty and free parts for life.

BREATHE EASIER

Featuring a pneumatically balanced second stage for smooth breathing, designed to respond to the natural inhalation and to reduce resistance.

Alpha 10 octopus:

Simple, dependable and economical, Alpha 10 Octo provides effortless breathing in a compact design that’s extremely tough, yet easy to maintain.

• The best price-to-performance ratio in its class
• Designed to perform to the U.S. Navy’s Class A standards
• Inexpensive to maintain
• Available with Miflex® Hose
• Pneumatically balanced demand valve
• Integrated Purge Button
• Orthodontic Mouthpiece
• Nitrox Compatibility – Standard to 40%
• Weight (without hose) – 6 ounces
• Dimensions (front profile) – 2.9 inches

The Delta 5 is the next step in a long line of remarkably reliable, durable and smoothly breathing regulators to carry that name. Sure, we’ve given it an updated look, but that’s not all. Like the deltas before it the 5 comes standard with our patented Dynamic Adjustment Technology that, once set by the diver, provides consistent airflow at any depth. It also comes standard with a dive/pre-dive switch and a super comfortable orthodontic mouth piece. This latest edition though has an updated, all metal pneumatic valve providing super smooth breathing performance in any condition.

Over 20 years ago we gave ourselves a challenge to design a rugged and reliable all-purpose regulator that would be at home in cold water or warm and breathe just as good at 30 feet as it did at 130. We called that regulator the Delta, and we still do.

The Delta5 is the next step in a long line of remarkably reliable, durable and smoothly breathing regulators to carry that name. Sure, we’ve given it an updated look, but that’s not all. Like the Delta’s before it, the 5 comes standard with our patented Dynamic Adjustment Technology that, once set by the diver, provides consistent airflow at any depth. They also come standard with a dive/pre-dive switch and a super comfortable orthodontic mouthpiece. This latest edition though has an updated, all metal pneumatic valve providing super smooth breathing performance in any condition. We have also added a heat exchanger, positioned on the hose connection to the 2nd stage, to further increase its already stellar cold water performance.

We’ve paired the Delta5 with the new eDX. This top-of-the-line cold forged, over-balanced diaphragm first stage is environmentally sealed and comes with 4 low-pressure and 2 high-pressure ports. It also comes equipped with a heat exchanger for added cold water performance.

• Pneumatically balanced all-metal valve.
• Dive/pre-dive switch & patented dynamic airflow adjustment control.
• Mechanical Purge button for consistent air-flow pressure on during purge.
• Nitrox Compatibility – Standard to 40%.
• Balanced diaphragm first stage eDX is environmentally sealed and cold-water ready.
• Heat Exchanger for Improved cold-water performance.
• Ergonomic exhalation venting.
• Dimensions (Front Profile) – 2.5 inch diameter (circular).
• Dual-material orthodontic mouthpiece with bite tabs.
• Service Interval – 2 Year, Required.
• Miflex Braided Hose – Supplied with complete models only.
• Optional Universal Swivel Adapter – the optional Universal Swivel comes separate but can be easily installed with an adjustable torque wrench and 5 min of free time. Instructions are provided.

Alpha 10 octopus:

Simple, dependable and economical, Alpha 10 Octo provides effortless breathing in a compact design that’s extremely tough, yet easy to maintain.

• The best price-to-performance ratio in its class
• Designed to perform to the U.S. Navy’s Class A standards
• Inexpensive to maintain
• Available with Miflex® Hose
• Pneumatically balanced demand valve
• Integrated Purge Button
• Orthodontic Mouthpiece
• Nitrox Compatibility – Standard to 40%
• Weight (without hose) – 6 ounces
• Dimensions (front profile) – 2.9 inches

Breathe Effortlessly.

Alpha 10 Octo gives you the same effortless breathing, with its pneumatically balanced demand valve and simple, refined design. Breathe out a sigh of relief with this tough, recognizable and dependable performer.

Simple, dependable and economical, Alpha 10 Octo provides effortless breathing in a compact design that’s extremely tough, yet easy to maintain.

• The best price-to-performance ratio in its class
• Designed to perform to the U.S. Navy’s Class A standards
• Inexpensive to maintain
• Available with Miflex® Hose
• Pneumatically balanced demand valve
• Integrated Purge Button
• Orthodontic Mouthpiece
• Nitrox Compatibility – Standard to 40%
• Weight (without hose) – 6 ounces
• Dimensions (front profile) – 2.9 inches