The refillable Float compressed air cylinder is the power and driving force behind their Float 2.0 avalanche airbag system. When the Float trigger is pulled, the Float 2.0 activates the release of 2,800-3,000 psi (207 bar) of compresed air, inflating the airbag. Nearly 30% smaller and 15% lighter than the Flat 1.0 engine, the Flat 2.0 cylinder ensures a rapid fill when activated. Note: Always make sure your cylinder is full and connected correctly before heading out. Only compatible with Float 2.0 system in the Float 17 or 27 Speed packs. This item is sold EMPTY.