The center piece of your avalanche airbag system, this Arva Canister is for natural air and is totally refillable and serviceable. This means you will be able to take it to your local authorized Arva Service Center and get this puppy filled. Make sure there is one in your area, because this bad boy ships empty (it's the law, sorry). If you are in the Utah area, you are in luck. Go to any of our retail stores and we will get you taken care of!