Mammut Refillable RAS Cartridge - $174.95

In order for your Mammut RAS (Removable Airbag System) to work, you'll need this Refillable RAS Cartridge to supply compressed air to the automatically inflating avalanche safety system. Once you've filled this empty cartridge to 3000PSI and installed it into your RAS (sold separately), it's ready to deploy the buoyant airbags that help you remain on the surface of an avalanche. The cartridge must be filled after each use, but hopefully you don't need to use it at all. - $174.95