The Alpha 9 Octo is the same effortless breathing regulator in a compact design but colored neon yellow so that you or your buddy will be able to find it with no problem.
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Free Octo

Limited offer. Until Dec 31, 2014 get a FREE A9 or A8 Octo when you purchase an Omega 3 or a ZEO regulator. Add the A9 or A8 to your cart and use promo code FREEOCTO14 to get it at no charge. Promo code can only be used in conjunction with purchase of an Omega 3 or a ZEO regulator.

Availability: In stock

Next Day Air & 2nd Day Air orders ship same day,
if placed before 12pm Pacific time.


Professional performance, entry-level price. If you believe that you shouldn't have to sacrifice performance for price, the Alpha 9 is for you. The Alpha 9 is the top-performing regulator in its class, and one of the most affordably priced regulators you can buy.

  • The best price-to-performance ratio in its class

  • Designed to perform to the U.S. Navy's Class A standards at 198 feet

  • Inexpensive to maintain

  • Available with MaxFlex Hose which is a lightweight, flexible, Braided hose designed to outperform and outlive traditional rubber hoses.



The Alliance Service Agreement offers FREE routine annual maintenance parts for as long as you own your  Oceanic Product and maintain the specified terms. There is no additional charge for this program.

Best Price / Performance ratio in its class
Not only is the Alpha 9 an economical buy for the diver on a budget, it is just as inexpensive to maintain. Standard replacement parts can cost as little as half of those in other regulators in its class.

Patented orthodontic mouthpiece
To further reduce jaw fatigue, the Alpha 9 features a patented Orthodontic Mouthpiece, designed to accommodate the natural overbite of the human jaw.

Nitrox Compatibility
The Alpha 9 is classified as being suitable for use with nitrox breathing gas mixtures containing up to 40% oxygen by volume without the need for special preparation, cleaning or component parts.

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Valve Type

Balancing System

Integrated Purge Button
Nitrox Compatibility

Integrated Swivel

Weight (without hose)
Dimensions (front profile)
First Stage Configurations
Minimum Cracking Effort
1.1 CIW*
Factory Set Inhalation Effort
1.2 - 1.4 CIW*
1.23 JOULES (PX-3)
1.47 JOULES (SP-5)
Limited Lifetime Service Agreement
30-Day Satisfaction Guarantee


Alpha 7 / PX-2 Work of Breathing


Did you know that it costs energy to breathe? The amount of energy your regulator requires to move each liter of air is called work of breathing (WOB). Lower work of breathing equals lower effort required to breathe and increased comfort and safety during a dive.

How to Read Work of Breathing Charts
The computer-generated breathing machine chart presented above represents a regulator's performance per standards established by the U.S. Navy's Experimental Diving Unit. Tests are conducted at 198 feet with approximately 3000-psi supply pressure, 25 breaths per minute of 2.5 liters each.

(1) Inhalation - The chart shows one complete breath cycle, starting with inhalation on the left and continuing along the bottom to the right, staying mostly below 0.0; thus the inhalation work of breathing is reported in negative numbers.

(2) Exhalation - The exhalation effort begins on the right and runs across the top to the left. These are all positive numbers since a diver (or the machine in this case) is blowing out (exhaling) rather than inhaling.

(3) WOB - The total area inside the loop formed by the two lines is what the computer analyzes to calculate the regulator's total work of breathing - the amount of energy the regulator requires to move each liter of air.

*Column Inches of Water

30 30-Day Satisfaction Guarantee

We guarantee that at any time during the first 30 days of purchase, your Oceanic product fails to meet your expectations, that product may be exchanged by a participating Authorized Oceanic Pro Dealer. No questions asked.

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