The Spare Air 300PK-N Nitrox Package is a compact emergency air system for scuba and diving use. It provides 3.0 cu ft of air and is designed to be worn with minimal intrusion, offering a practical surface-supply option for recreational divers using Nitrox gear.

Included in the package are Spare Air, a holster, safety leash, and a refill adapter. The aluminum cylinder is black anodized for durability in saltwater environments, and the system refills quickly from any full SCUBA tank. A pressure indicator can be added separately (Dial Gauge sold separately) to monitor remaining air during dives.