The Motorfist Argo Avalanche Airbag Backpack is a dual cartridge system where one cartridge – a CO2 cartridge – functions as the volume cartridge, and another cartridge – an Argon-filled cartridge – is the quick launch-to-inflate cartridge. Both are cartridges are replaceable. Like a C02 inflator for a road bicycle or mountain bike, these cartridges, once used, are throw away cartridges. With the second set on hand, owners have the comfort to know their bags are ready to protect.
Check it out here: Tested: Motorfist Argo Avalanche Airbag - Snowmobile.com