Air Supply: Durable construction Stainless steel canister holds up to the heavy demands of the EMS Market Ease of use Convenient hook allows canister to hang on the stretcher provides rapid inflation of the HoverMatt and HoverJack products. Compatibility with HoverJack Battery Cart Ensures HoverMatt and HoverJack products can be inflated anywhere you need them ** Please reference item #240123-2600-07 when contacting us about this listing. Return Policy Items are sold as-is as described and pictured. Most items come with a 7 day option to return and a 30 day limited parts warranty. Feel free to call before you buy. 888-649-6497