Mares Alt Air Control Integrated Octo 416893NR 035071

Mfg Part #: 416893
You Pay:
You Save:
  • Nitrox compatible to 40% (The recreational limits of Nitrox)
  • VAD (Vortex Assisted Design) by-pass system for effortless, natural breathing under all conditions
  • Inflator integrated secondary air source
  • The Alt Air Control Integrated Octo is positioned at the end of the Buoyancy Compensator hose
  • Eliminating hose clutter, because you use the same hose to supply both the power inflator and your alternate air source, also known as safe-2nd or Octo
  • Specially designed mesh grid cover to prevent unwanted free-flow even
    in the strongest currents
  • Light weight and compact design 
  • Convenient, fixed location  
  • Replaces loose, hanging octo  
  • Compatible with all Mares BC's - except with BC's that have the AirTrim Systems

Customer Reviews for Mares Alt Air Control Integrated Octo:

See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 5 reviews.

Rating: Air Control streamlines my setup
Reviewer: William H. Lawler
I bought my wife and myself Air Controls for out new Mares BCs a few years ago to streamline our setup. The inflator function failed on mine in Bonaire last Christmas after four years, so I bought an open box model here to put on my new BC and keep my old Air Control for parts if necessary. Taking it to Nassau new week to see how it works out.

Did this Review help?

Rating: Mares Hybrid Pro Tec BC
Reviewer: Donald D.  -  View all my reviews
When I purchased this BC, I was concerned about the locking system for the weight pouches. It only has one lock with no backup system. Sure enough, the handle got bumped and I lost one pouch. I tried to order another from They were very non-supportive and could not not help me. I do like this BC for the rings and the lumbar pad. This is a good BC for my commercial diving with one important flaw. I have an Oceanic BC also that has velcro keeper as well as the lock device. This system is much better.

Did this Review help?

16 out of 30 people found this review helpful.

Rating: Works well
Reviewer: Daryl M.
Unit is well built and breaths very well. The directions for assembly leave a lot to be desired.

Did this Review help?

Rating: Great system
Reviewer: Jeff Hemsath  -  View all my reviews
The Integrated Octo works great. What they dont tell you is it comes with a kit to make it work on most B.C.s. Adapters, ties, and the pins for dump valve. Also the LP Quick connect hose is light weight braided. If you travel, the weight loss (no separate octo and hose)will help. The Reg functions well but not like a high $ octo. Breathing is a little hard, but it WORKS. Large fill and dump buttons, works good with cold water gloves. Old schoolers are used to the separate octo. This one is always right there. Nothing to "find" and unclip, just jam it in your pie hole and breath!

Did this Review help?

99 out of 184 people found this review helpful.

Rating: Better than having an octo dangling around...
Reviewer: David Schiessel  -  View all my reviews
Very easy to use. Big dump and inflator buttons. Has a decent regulator.

Did this Review help?

117 out of 247 people found this review helpful.

Questions and Answers for Mares Alt Air Control Integrated Octo:

  • Rick:

    I see two questions here regarding compatibility with other BCDs. The answers are both that it only fits Mares BCDs. However, Mares claims it comes with a kit to fit any BCD and one of the reviews also states that it came with a kit and fits any BCD. This has left me not knowing which answer is correct. May I ask what the universal fitment kit is for if not to make this fit on other BCDs? Thank you!

    Bob  (Certified Scuba Instructor at

    When the Alt Air was first introduced that adapter kit had not been developed as of yet, so at that time those answers were correct. The adapter kit allows for the Alt Air to be used with any bcd accept those listed.

  • Bansi:

    Does this inflator-octo have a problem with buttons getting stuck? Some people who bought this have reported this problem ..... perhaps Mares solved it by now.

    Bill  (Certified Scuba Instructor at

    We have not run across any problems with these units. Poor care and maintenance is sometimes why divers have problems with these.

  • Joe:

    What size corrugated hose does this Octo fit?

    Bill  (Certified Scuba Instructor at

    This uses an 3/4 inch corragated hose and ONLY fit the MARES BCs.

  • Vince:

    Which LP air hose should I order with this combo inflator/Octo?

    Bob  (Certified Scuba Instructor at

    It will come complete with the hose needed.

  • Vince:

    Does this come with the required LP air hose?

    Bob  (Certified Scuba Instructor at


  • Mark:

    What are the required specs for the LP hose used for this? I was told that Id have to replace the standard inflator hose on a rental reg with the hose this came with. Thanks!

    Darrick  (Certified Scuba Instructor at

    Hello Mark, since this has a build in air source also the connection to the power inflator is larger so you need a different hose for this unit than you would for a standard power inflator.

  • rhett:

    is this nitrox compatible? thanks!

    Darrick  (Certified Scuba Instructor at

    Hello Rhett, it is 40% ready out of the box. I

  • Mark:

    What type of quick disconnect fitting is used on the Mares Air Control? I would like to get a backup hose with QD fitting for my save-a-dive kit. I see "ScubaPro", "SeaQuest", and "Oceanic" as possible fittings.

    Darrick  (Certified Scuba Instructor at

    Hello Mark, this would be the hose for your Air 2:

Air Control

The evolution

• Combine hose for octopus and inflator
• Ergonomic shape
• Pre-oriented mouthpiece for easier use

Air Control, the new mares alternative air source, offers the option to use the same hose for the octopus and the inflator. The pre-oriented mouthpiece makes it usable as a quick and easy octopus. The cover features the Mesh Grid system, made of soft material so the purge button is easy to push, even when wearing gloves. It complies with EC standards and with special adaptors that can be easily assembled on all BCs. The ergonomic shape allows one-handed use.

Product Details
Code: 416893
Second stage weight (g): 241 INT
Nitrox: -

Product Features

Fluid Dynamic Deflector: Receives and properly directs the airflow from the bypass tube to the mouthpiece.

Mesh Grid: Patented design which reduces the impact of water flow onto the second stage diaphragm, thus eliminating free flows even in strong currents.

Superflex Hose: Extreme light weight and exceptional softness guarantee the maximum freedom of movement.

Ultralight Techno Polymer: Abrasion resistant and affordable, ideal for diving in warm and moderate water temperatures.

Vortex Assisted Design: The air bypass tube conveys air to the mouthpiece creating a swirling vortex with a low pressure area in the center that keeps the diaphragm down during inhalation, for very sensitive and easy breathing at all depths.

The air coming from the LP-hose passes through the second stage control valve and is conveyed directly to the mouthpiece through the by-pass tube (Mares patented). In the mouthpiece connector, the airflow creates a swirling action, or “vortex”. The core of the vortex is a low-pressure area, which, during inhalation, helps to hold down the second stage diaphragm, thus markedly increasing regulator sensitivity. The decisive advantage of the VAD System lies in the precision of its control. The VAD supplies the inhalation effort with just the intensity required.

Another advantage of the VAD system is related to the bypass tube, through which most of the air is delivered. In cold water diving, this system prevents ice crystals (which can be generated by the expansion of humid air in cold temperatures) from interfering with the proper operation of second stage components.

View all Mares Octos/Spare Air

Choose Currency:, 1752 Langley Avenue, Irvine CA 92614

Click to Call
US and Canada
949.221.9300 / Toll Free 1.800.347.2822
International 001.949.221.9300