?Camping Essentials?Propane/Isobutane/Butane/Refill Adapters Can Easily Connect With 1Lb Propane Canister, Butane Canister And En417 Lindal Valve Canister (Tanks Are Not Included). Adjust The Nozzle Specification To Achieve Mutual Inflation Between Gas Tanks. Makes Your Camping Really Easy. | | ?Safe No Leaks? With Premium Sealing Gasket, The Gas Refill Adapter Can Effectively Prevent Gas From Leakage. If Gas Saver Valve Is Not Connected.The Gas Refill Adapter Will Automati