Gas Canister Refill Adapter, Lindal Valve Canister Shifter, Gas Saver, ?High quality material?: Made of High Quality Aluminum Alloy and Copper construction makes fuel canister adapter corrosion resistant and long service life. ?Multiple functions?: Products are used at the same time to achieve mutual inflation between gas tanks. There is a function of depressurizing and discharging air to the inflated tank, and it can be used to discharge residue gas and air from non-emptied canisters. ?Save money?: Residue fuel gas in multiple non-emptied canisters can be collected into one canister through this valve for reuse, can attach converters with different fittings, this valve can be used to interchange fuel gas between different types of containers. ?Easy to carry?: Foldable design, light weight, small size, easy to store. The Gas Convertor Shifter is adapted for camping, hiking, picnics, etc. ?Easy operation?: Gas saver plus with pressure release button and adjustable control valve.