An alternate air source, also called an Octopus or Octo, is a backup regulator that can be used by others in an out-of-air emergency or if your regulator fails. Octos generally have longer hoses and bright yellow bodies that can be easily spotted in an emergency. Another option is to have an integrated alternate air source, which is connected to your BCD and has your inflate and deflate buttons integrated into the hose. This option is more streamlined and less prone to getting tangled with your equipment.

Below is the selection of alternate air sources we have available for purchase at our facility. Stop by and our retail specialists will be happy to answer any questions. We are able to make special orders if we do not have the exact product you are looking for. If you are not able to come into Ocean First, give us a call at 303.444.7234 to place an order over the phone.

Aqualung ABS Octopus


The ABS Octopus combines good breathing performance with the benefits of a low profile body style. ideal for giving your octopus to a buddy - will work in either right hand or left hand positions. Yellow hose easily distinguishes your ABS hose from your primary hose.

Aqualung AirSource 3 Quick Disconnect (Installed)


This is the exact same item as the one before, but if you purchase a BCD and the AirSource 3 at the same time the MFR gives you a price break. Take advantage of this and buy both at the same time! This discount can not be applied if the items are not purchased together at the same time.

Apeks Egress Octo


Pneumatically balanced, the Egress Octopus offers excellent breathing performance for an alternative air source. The low profile ensures less drag and the 120° angle between the mouthpiece and hose is optimal for sharing air with a buddy.

AquaLung AirSource 3 Quick Disconnect (Complete)


The AirSource 3 combines a high-performance second stage with a power inflator. By eliminating the need for a traditional octopus, the diver can streamline the entire system and will be right in front of you to deliver life saving air in a moments notice. This item is for the diver who already owns a BCD but wants to make their system more travel friendly.

AquaLung Micron Octo


Just like the Mikron regulator the Mikron Octopus is travel-friendly in it's compact size.

AquaLung Leg3nd Octopus


To compliment the Legend regulator family, Aqua Lung created the Legend octopus. This high-visibility, yellow version of the Legend second stage is ideal to complete your system.

Atomic SS1 (Stainless)


All the convenience of a combined octopus and inflater and it still breathes like a primary! The SS1 is constructed with top of the line materials, including stainless steel and titanium for maximum durability and corrosion resistance.