Spare Air Mini Scuba Tank - 6.0 cu ft Nitrox Oxygen Dive Cylinder - Small Emergency Backup Diving Equipment with Holster, Leash, and Refill Adapter

Divers have several emergency air choices. This is one of the best and it's been around since the 1980s. Compact and self-contained, it is entirely independent of your normal air supply. Strap it to your BC and it's readily available for you or your buddy. You fill it from a larger 3000 psi tank using an included adapter, which works well. With only 3 cu ft of air, the dent it takes out of the larger tank is barely noticeable, about 100 PSI drop from a full Al 80 tank. And you can disassemble it for travel. I find that the 3 cu ft (small size) is more than enough for emergency use; I would not want to carry a larger one, nor take the hit when refilling it. During dives it feels close to neutrally buoyant. The little tank can be reused, hydro tested and inspected just like a larger scuba tank, so it should last for many years. The built-in regulator durability/longevity is unknown, only time will tell.

Received my Spare Air yesterday and overall I am impressed. Like the tank, holder, which looks easy to fasten onto your BC and the adapter for filling. What I didn't like was the way you see how much air is in the tank. A metal rod either is in or out, depending on how much air your have. I am a PADI Professional Diver and if I am doing an emergency ascent, I want to know how much air I have in cu. ft, not by trying to calculate it by how far the rod sticks out. I ordered the Spare Air pressure gauge that is available, for an additional $60. Why didn't Spare Air just make that a standard instead of the cheap way they choose?

Tried 3 different scuba bottles to try to fill the spare air, leaked, obviously a spare air problem as the tanks all sealed with anything else. I'm one week past the return window, should have checked sooner, live and learn, Obvious Quality Control problem.

Been diving for years and recently dove in the Florida Keys, (Ramrod) soon to return to Key Largo. Never had to depend on a redundant source but certainly glad to have SpareAir if needed. I'd highly recommend to upgrading the pressure indicator (SpareAir) that has a pressure number indicator. I did preform a test when I was in the Keys and SpareAir worked perfectly.

This is my second spare air. I opted for the NITROX version, but a NITROX filled spare air isn't really necessary since it is an emergency back-up. I learned how important it is to have a completely redundant air source after having a gasket blow on my tank (fortunately it was on deck and not during the dive), and my tank started to dump high pressure air. Had this happened at depth, my tank would have been dry in a matter of seconds. The quality of this is excellent. I opted to buy the actual dial to show pressure and the travel kit.

I love this little pony bottle! I hopefully will never have to use it, but I have been practicing with it. It is a very nice feeling to have that little bit of extra air just in case. It fills very easy from your main tank, and I have attached it to the bottom of my BC. There is a little 'drag' when breathing but not too bad. I get about 3-5 minutes out of it in the pool.

Can’t use it yet!

used on my last dive and tried it out worked good .