Spare Air Model 300 Personal Breathing Apparatus/Tank



  • 3.0 cubic feet of air.
  • Tank finish in durable Anodized Black.
  • Easily refills from your own SCUBA tank 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.


Maximum Capacity: 3.0 cu ft / 85 liters
Length: 13.4" / 34 cm
Diameter: 2.25" / 5.7 cm
Maximum Pressure: 3000 psi / 207 bar
Weight (full): 2.2 lb. / .98 kg
Surface Breaths:* 57
Water Volume: 27 cu in / .44 liters



  • Nitrox ready up to 40% EAN
  • Durable 3.0 cu. ft. black anodized aluminum cylinder labeled in green Nitrox markings
  • Refillable to 3000 psi off any Nitrox scuba tank or air compressor
  • One of the best qualities of SPARE AIR is the ease of filling it from your own tank, and if you dive Nitrox, it only makes sense to fill your SPARE AIR with Nitrox

Package Includes:

  • Nitrox SPARE AIR breathe on demand, balanced single stage regulator
  • 3.0 cu.ft. Black Anodized Aluminum CYLINDER with Nitrox Label
  • 910S REFILL ADAPTER - Fills off Nitrox SCUBA tank
  • 973 COVERED HOLSTER - Mounts to BC
  • 961 LEASH - Prevents loss
  •  Product Specifications:
    Part Number 300PK-N
    Product Length 13.4" [34 cm]
    Product Diameter 2.25" [5.7 cm]
    Product Weight (full) 2.2 lbs [.98 kg]
    Cylinder Pressure Ratings 3000 PSI [207 BAR]
    Cylinder Volume 3 cu ft [85 liters]
    Cylinder Material Aluminum - Black Anodized
    Pressure Relief Integrated in regulator
    Regulator Type Balanced Single Stage
    Operational Temperature -22°F [-30°C]
    +158°F [+70°C]
    Duration of Air Supply Approximately 57 breaths at surface

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