Camping Stove Adapter In Addition To Lindal Valve Canister Shifter Gas Saver And High Quality:Made of High Quality Aluminum Alloy and Copper construction makes fuel canister adapter corrosion resistant and long lasting. Foldable Design:The camping canister refill adapter is lightweight and easy to carry. Multifunction:The Canister refill adapter save fuel and save resources by collecting remaining gas.It can refill gas from isobutane fuel canister( EN417 Lindal Valve) to another isobutane canister.Comebine with butane adapter(V110)It can use the cheaper gas such as 8oz butane gas cartridge(nozlle bottle).Comebine with Propane adapter(Z22)It can use the cheaper gas such as16oz small proppane tank. Vent Vaule:A vent valve that can reduce the internal pressure of the fuel canister on the bottom side(empty gas receiving canister). Attention:Make sure that the main valve is locked before connecting refill adapter to gas canisters, please use it in a safe outdoor location where ventilates well and there is no fire or anything lights or causes fire.