The Mammut Refillable Avalanche Airbag Cartridge is a key part of your avalanche safety system, designed to be refilled after deployment using a compressor or diving cylinder. Compatible with various Mammut and Snowpulse airbags, it's easily checked for pressure and keeps you ready for every backcountry mission. *Note- this cartridge comes empty and will need to be filled and needs the cartridge refill kit to be filled*