LIXADA Gas Saver Plus, Gas Convertor Shifter, Refill Flat Tank, Conversion Adapter, Camping Gas Adaptor Valve, for Nozzle Bottle Type/Butane Gas Cartridge/Lindal Valve Canister

This gas transfer valve is a useful tool for campers and hikers who need to refill their empty gas canisters while out in the wild. It is important to note that it is not advisable to fill backpacking propane/isobutane/butane canisters with the 100% propane from a Coleman canister, due to the higher pressure from the 100% propane, which could be dangerous for the canister. However, this gas transfer valve works well for refilling canisters with either butane or propane. Some customers have suggested adding a pressure release valve to prevent canister damage due to pressure build-up. The valve is well-made and easy to use. It takes a few minutes to transfer the gas, but it works as advertised. Overall, this gas transfer valve set is a useful tool for campers and hikers who need to refill their gas canisters.