The cartridge is an essential component of the avalanche airbag system and must be ordered separately. It can be refilled by the user after any deployment using a compressor or diving cylinder. The filling pressure of the cartridge can be checked quickly and safely using a pressure gauge. The Cartridge Refill Kit and a compressed air source are required for refilling.Features:- Available filled ex-factory or empty- Aluminium cartridge filled with compressed air- Simple, independent refilling possible- Filling pressure can be controlled via an integrated pressure gage- Compatible with Removable Airbag System (R.A.S.) and Protection Airbag System as well as with Snowpulse® avalanche airbags from winter season 2011-2012- One refill kit (pack of 3) supplied with the productSpecifications:- Weight: 700 g- Airbag system: Removable Airbag System- Cut: BasicTechnology:Sustainability:Mammut airbag technology 3:- The Airbag System 3.0 is a reliable airbag system that is so compact and lightweight you’ll barely notice it on long ski touring adventures or freeride descents.