Sherwood Gemini Breathable Inflator SR9000 035038

Mfg Part #: SR9000
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  • Nitrox compatible to 40% (The recreational limits of Nitrox)
  • Dive with one less hose
  • Inflator integrated secondary air source
  • Bright "hi viz" yellow accents for easy identification
  • Convenient, fixed location
  • The Gemini 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
  • Compatible with all BC's except by Aeris, Aqua-Lung, Cressi, Dacor, Hollis, Oceanic, SeaQuest, TUSA models with the A.P.A. Active Purge Assist inflator system, US Divers and XS Scuba

Customer Reviews for Sherwood Gemini Breathable Inflator:

See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 7 reviews.

Rating: Great alternate source
Reviewer: Jeremy Pipkens  -  View all my reviews
I read many reviews before purchasing and installing this inflator for my wife. Many people experienced freeflow, but after two 80ft dives with no freeflow, I cant say the same. I breathed off of it underwater and it breathes very easy at depth. My only issue is that the hose could be a little longer, and that the lower assembly could be a little flatter, like my Aeris/inflator. These arent issues for my wife however, who is completely satisfied, and happy to be more streamlined. Great product!

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273 out of 526 people found this review helpful.

Rating: No Emergencies Yet!
Reviewer: Walt Baydo  -  View all my reviews
Fortunately, I have not had the opportunity to REALLY use the Gemini under emergency conditions, however while testing the product now 6 to 7 times times it performs perfectly. I would like to get a bit longer inflator hose for my BCD so I can have more range of motion while using the Gemini.

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377 out of 793 people found this review helpful.

Rating: Its a hit
Reviewer: John Leach
I installed the Octo/Inflator 2 days before a dive trip to Panama City, and my buddy used it on our first dive when his second stage failed. It worked great, and really unclutters my BC. Its a great product, with large, easy to identify buttons, and is the best made combo Ive seen.

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450 out of 891 people found this review helpful.

Rating: Gemini
Reviewer: Vernon Kittinger  -  View all my reviews
I have heard good things on this item through two dive shops. I used it diving in Belize in Feb. and was extremely satisified. I would recommend the Gemini.

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473 out of 950 people found this review helpful.

Rating: worth every penny
Reviewer: Tim S.  -  View all my reviews
Top quality. A must have. It cut down on the amount of hoses i need to have. Works very nice. It breathes as nice as my main regulator.

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502 out of 1025 people found this review helpful.

Rating: this #2 is the shit.
Reviewer: brock cahill  -  View all my reviews
works great, and ditch the extra hose!

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542 out of 1065 people found this review helpful.

Rating: Excellent Alternate Air Source!
Reviewer: Josh Hamilton  -  View all my reviews
Looks great, works great, and was a great price!

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605 out of 1160 people found this review helpful.

Questions and Answers for Sherwood Gemini Breathable Inflator:

  • Orhan:

    Dear Sir/Madam, will this inflator (Sherwood Gemini)fit to the corrugated hose of Cressi Aquapro 5 BCD? Thank you for your answer.

    Darrick  (Certified Scuba Instructor at

    Hello Orhan, this would not work for your BCD. The hose that your unit attached to is a 3/4" hose. This unit takes a 1" hose. If you have any other questions or would like to place an order please feel free to give us a call at 1.800.347.2822.

  • Joseph:

    Would it fit the Zeagle Ranger?

    Bob  (Certified Scuba Instructor at

    Yes it will. It will fit most of the bcd's on the market using a standard 7/8" corrugated hose.

  • Roy:

    Would this fit on my Halcyon eclipse BC?

    Bob  (Certified Scuba Instructor at

    The Sherwood Gemini will fit on any "standard" 7/8" corrugated inflation hose.

  • Andrew:

    Will this work with a dive rite voyager wing?

    Bob  (Certified Scuba Instructor at

    Dive Rite uses a standard sized corrugated hose, so the Sherwood Gemini should work perfectl.

  • David:

    Aloha, I have the Oceanic Islander. Will this inflator work with my BC and if not can you recommend one that will?

    Bob  (Certified Scuba Instructor at

    This will not work with the Oceanic bcds. You'd need to use either the Oceanic Air XS II or the Aeris Air Link due to the smaller corrugated hose size on your bcd.

  • JP:

    Would the Sherwood Gemini sr9000 fit my Scubapro Go bcd?

    Bob  (Certified Scuba Instructor at


  • Brian:

    Will this work on a Balance BCD?

    Arthur  (Certified Scuba Instructor at

    Hello, no this would not work with your bc. Check out the Aqua Lung Airsource QD Octo or the atomic SS1.

  • Ton:

    Hi, Will this fit Mares Hybrid Pure BCD?

    Darrick  (Certified Scuba Instructor at

    Hello Ton, yes this would fit onto your Mares Hybrid BCD that you have.

OCTOS: Gemini


Replaces the conventional BC power inflator and back up second stage regulator by combining the functions of both in a single convenient unit. Eliminates need for one hose from first stage. Provides excellent breathing performance without need for in-water adjustments. Power inflation, oral inflation and exhaust trim valve operations remain similar to the standard BC inflator and allow easy single-handed control.


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