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Spare Air 300-N Nitrox Package with 3.0 cu.ft. Cylinder

Do you dive with Nitrox? If you dive Nitrox, this is the SPARE AIR for you. It is the perfect addition to your Nitrox System, with quick and easy refills from your own Nitrox SCUBA tank.


  • Nitrox ready up to 40% EAN.
  • 3.0 cubic feet of air.
  • Tank finish in durable Anodized Black with clearly marked NITROX label.
  • Refillable to 3000 psi off any Nitrox SCUBA tank or air compressor with included refill adapter (patented).
  • Easily attaches to your BC with included holster and safety leash.
  • Small, hands-free, nearly neutrally buoyant.
  • Breathe on demand regulator -No complicated instructions.
  • Completely redundant back-up miniature SCUBA system.
  • Faster than buddy breathing and easier than an octopus.


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Question asked
on 1/25/2014
I'm a surfer and I use a portable Oxygen Concentrator when exercising on land. I have a recommendation from my Pulmonologist to use a 3 liter setting for my oxygen concentrator. For surf contest I would like to have a X treme sport Noprene vest and a Nitrox Back up supply is that doable? Do I need a prescrption? What Nitrox product is comparable to a 3 liter setting? Is the nitrox refillable at my local dive shop ? They say that the cylinder must be right and they need a Dr's prescription.
Answer by Bill
on 1/29/2014
OK, first off these are filled from an existing tank so doing nitrox would not be a problem you would need a certification unless the dive shop you are dealing with will take your prescription since this is not for scuba. As for a 3 liter setting you would need calculate to percentage of O2 in the tank. Hope this helps!! Thanks, Bill