The Spare Air Model 300 Package Kit provides 3.0 cu ft of emergency breathing gas for scuba divers. Designed for recreational diving, this compact system remains unobtrusive while offering a reliable surface ascent option in an emergency. The kit includes Spare Air, a holster, a safety leash, a refill adapter, and the DiveCatalog orange whistle with lanyard for signaling.

Specifications at a glance include a maximum capacity of 3.0 cu ft / 85 liters; length 13.4" (34 cm); diameter 2.25" (5.7 cm); maximum pressure 3000 psi / 207 bar; weight when full 2.2 lb / 0.98 kg; surface breaths 57; water volume 27 cu in / 0.44 liters; cylinder material Aluminum with a black anodized finish; and a balanced single-stage regulator. This information supports planning for scuba and diving gear use in varied conditions.

The system is lightweight and practical for divers who want a straightforward, reliable emergency gas option. Weighing just over 2 lbs, it remains one of the lighter weight options in its class. Refill capability is quick, allowing you to replenish from any full scuba tank, and a pressure indicator is available separately to monitor remaining gas during use.