H-2ODYSSEY : Picture 1 regular $269.95

About H2Odyssey Extra Air Source 3 Regulator System

You're 60' (18 meters) down, and your Primary Air Source malfunctions, you can't get air! What do you do? Pull-Out your Extra Air Source, Calmly Make-your-Way to the Surface, Make-a-Safety-Stop and once back on the boat or on shore thank your Lucky Stars" you dove with the Extra Air Source. The Extra Air Source removes existing limits on Redundant Air currently on the market and allows you to configure a Redundant-Air-Source tailored to your Diving- Needs. Whether you're Cave Diving or Diving Shallow Reefs the Extra Air Source will get you to the Surface and even provide you with Enough-Air for a Safety Stop if configured correctly for your maximum depth.

Having a Redundant Air Source for Increased Safety allows Independent Emergency Air not Dependent on your Primary Air Supply. An Octopus or Breathable Inflator System both depend on the Reliability of your Primary Air Source. If it malfunctions you're Out-of-Air! The EAS3 gives you the Reliability of a Redundant-Air-System using a Dependable Balanced Diaphragm First Stage with a Downstream Demand Valve Second Stage.

The RG3V Balanced Diaphragm, Forged, Black Chrome Plated Marine Brass First Stage Regulator is inherently Environmentally Sealed. The benefit of this type of first stage design is that none of the delicate internal parts are exposed to contaminants such as salt, sand, chlorine or pool acids. These environmental contaminants can cause corrosion and mineral deposits to form on the internal mechanism deteriorating regulator performance. With the RG3V there is a Secondary Environmental Diaphragm Membrane that seals off the spring chamber keeping the first stage completely sealed off from the environment adding a second layer of corrosion resistance. The First-Stage Regulator threads directly into the Neck-of-the-Cylinder eliminating the Need-or-Bulk of a Cylinder Valve, First Stage has a Sure-Grip On/Off Valve Hand-Wheel that is Easy-to-Turn even with gloved hands. The First Stage is equipped with 3-Low Pressure Ports and 2-High Pressure Port.

The Second Stage Regulator has a Bright Yellow Purge Cover, is a Dependable simple Downstream Demand Valve design which connects to the First Stage via a 360 Vertical/ Horizontal Swivel. The Second Stage has a Quality Silicone Mouthpiece, Diaphragm and Dual Exhaust Valves in a Dual Exhaust Manifold for Ease-of-Inhalation/Exhalation when in an Emergency Out-of-Air Situation. The Large Purge Button makes Clearing-the-Regulator Safe and Easy. The First-Stage Regulator threads directly into the neck of a 3/4"-14 NPSM cylinders eliminating the need or bulk of a cylinder valve, it also gives you the latitude of selecting the size of cylinder to be utilized.

The Extra Air Source is available in two Models. If you find that you will be filling your unit predominantly at your local dive store or on a dive boat that can fill cylinders then you will prefer the Station Filler Model, if you will be filling your unit while on the fly, then you will need the Yoke Model which allows filling from your Scuba Cylinder. If you find you may need both then the SKU's for the two Filler Adapters are as follows: H2EASSFA Station Filler and H2EASYFA Yoke Filler. Product comes with an Owner's Manual and is covered by a 24 month limited warranty.

Warranty Information

This product has a limited warranty of 24 months.

(800) 999-0019

H2Odyssey Extra Air Source 3 Regulator System Features

  • Reliability of Redundant-Air-System
  • Increased Safety in Diving
  • Threads Directly to Any 3/4"-14 NPSM Cylinder
  • Cave Diving or Diving Shallow Reefs: Extra Air Source can Supply Enough-Air
  • Independent Emergency Air, No Dependency on Primary or Buddies Air Supply
  • 2 Choices: Chrome Plated Brass Station Filler or Yoke Filler
  • Station Filler: Fill from Dive Store or Boat Air Fill Station
  • Yoke Filler: Fill from Scuba Cylinder
  • Owner's Manual
  • 2 Year Limited Warranty
  • First-Stage:
  • H2Odyseey RG3V First Stage Regulator
  • Balanced Diaphragm First Stage
  • Environmentally Sealed
  • Forged Marine Grade Black Chromed Brass Material
  • Durable and Corrosion Resistant Design
  • Sure-Grip On/Off Valve Hand-Wheel
  • 3 Low Pressure Ports
  • 2 High Pressure Ports
  • Second Stage:
  • H2Odyseey RG8 Second Stage Regulator
  • Dependable Downstream Demand Valve Design
  • Bright Yellow Purge Cover for Easy Identification
  • 360° Vertical/Horizontal swivel connection
  • Dual Exhaust Valves and Manifold
  • Silicone Mouthpiece, Exhaust Valves and Diaphragm
  • Large Purge Button for Easy Access

H2Odyssey Extra Air Source 3 Regulator System Specifications

1'St Stage Type
Balanced Diaphragm
Lp Ports
Hp Ports
2'Nd Stage Type
Downstream Demand Valve
First Stage: Black Chrome Plated Brass, Second Stage: Housing: Plastic, Mouthpiece, Diaphragm And Exhaust Valves: Silicone, Filler Adapters: Chrome Plated Brass
Weight [with packaging]
with Station Kit: 3.25 lb,
with Yoke Kit: 3.6 lb
Mfr #

H2Odyssey Extra Air Source 3 Regulator System Customer Reviews

Write a Review


by PowerReviews
AquaH2Odyssey Extra Air Source 3 Regulator System

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

Displaying review 1

Back to top


Great product

By Dean

from Australia

About Me Casual/ Recreational


  • Comfortable Mouthpiece
  • Does Not Leak
  • Easy To Connect
  • Easy To Use
  • Reliable
  • Slim Design


    Best Uses

    • As Primary
    • Last Resort

    Comments about Aqua H2Odyssey Extra Air Source 3 Regulator System:

    I bought this product for an emergency and it is great. I also use it for freediving to give me a few extra breaths when exploring caves and the like.

    It is small in capacity so there is a limit on its usefulness at depth but it works as advertised. Testing it on the surface I drank it dry in about 10 minutes.

    The unit itself is good and compact. The bottle is about the size of a 1.25L coke bottle. The regulator is fixed to the top of the tank with no hoses. This makes it a bit difficult to use as you need to manoeuvre the tank up to your mouth but it is better than having hoses to secure.

    I have the yoke filler that enables filling from the main tank. It takes a bit of getting used to work out how to fill without leaking air. I thought I had a faulty unit but was just that I had not sealed all the treads properly (which there is a bit of a trick to). Make sure you fill slowly - otherwise the air goes into the pony hot and when it cools the pressure will fall.

    • Diving Type:
    • Open Water Diving, Wreck Diving
    • Was this a gift?:
    • No

    Comment on this review

    Displaying review 1

    Back to top


    Questions & Answers Powered by TurnTo®

    Questions about this item:

    Rudolf J  I am a non-diver. I need extra air when inspecting the underside of my sail boat or when I do repairs under water. Could I use this? Would I need extra things like a first and second stage or a regulator? Can I have it filled at any regular diving shop? Extra question: do you ship to the Netherlands?
    Ben T  Any tank can only be filled and used by a certified diver.
    shikhar m  While charging the bottle, how do we come to know the pressure?
    JOSEPH S  You install a pony tank pressure gauge. Several manufacturers make them.
    shikhar m  While charging the bottle, how do we come to know the pressure?
    JOSEPH S  You install a pony tank pressure gauge. Several manufacturers make them.
    Share this item: