The Diver’s Reserve Parachute ...than a Pony System, Octopus or Buddy Breathing. Original Manufacturer & made in the USA! Over 300,000 sold since 1979. Tested & approved by the US Navy. SPARE AIR is Refillable! Fills from SCUBA tank, local dive shop, breathing air compressor, or hand pump. Easy to Travel With! Take on any airplane to your dream vacation. Max Capacity (300): 3.0 cu ft / 85 liters Max Capacity (170): 1.7 cu ft / 48 liters Diameter: 2.25” / 5.71 cm Max Pressure: 3000 psi / 207 bar Weight (300): 2.17 lb. / .985 kg Weight (170): 1.51 lb. / .687 kg Surface Breaths*: 57 (300), 32 (170) *based on 1.5 liter breath size SAVING LIVES Save your own Life! Read testimonials from divers like you at spareair.com. Quick and Easy Mounting! Safety Leash prevents loss. Available at your local dive shop or visit

“I never thought it would happen to me... ...but on the night I ran out of air, it nearly cost me my life.” Larry Williamson, Inventor of SPARE AIR read the full story at spareair.com Don’t Go Down Without It! A skydiver wears a reserve parachute, a SCUBA diver should have a reserve breathing system. For over 35 years we’ve supplied divers with the smallest, most-compact redundant system available for out-of-air emergencies. The patented SPARE AIR should be a standard piece of SCUBA diving equipment for the safety minded diver. In an out-of-air emergency, why would you trust your life to anything...