Propane To Butane Adapter Conversion, Butane Fuel Canister Shifter, Camping 1 REFILL/TRANSFERRED FUEL, NO MORE HALF FULL CANS?This Propane/isobutane/butane/ refill adapters kit easily transferred fuel between canisters. If you have assortment of partially full canisters, now you could consolidate the remnants of gas from multiple canisters into one. Have a full canister for next trip. With this cool refill adapter valve kit, you are easy to fill small canisters from large ones. 2 SAVES GAS, SAVES MONEY - With this propane refill adapter set you can use larger containers of fuel. The 1LB propane canisters is handy to have and cheap. It?s free, simple and easy to fill small canisters from large ones. The refill adapter kit works and saves you a lot of money for your backpacking stoves that normally use isobutane/butane canisters. 3 PORTABLE CASE, REDUCE WASTE - Small isobutane and butane refill adapters come in a protective zip case, easy to carry. It's portable and you won?t lose it in your big bin of camping gear. This Refill Adapter Valve is a great waste reduction tool which let you don't waste any gas. 4 SECURE THREADED, NO LEAKS - The handy adapter kit is well constructed. Propane adapter is made of stainless steel with self-locking function. The adapter will automatically turn off if the stove is not connected. It?s durable sturdy and have a good sealing gasket, seals on snugly. Don?t leak. 5 Easy to use - If you use multifuel frequently, you should consider this. Different adapters for different types of canisters. This adapter kit does thread on/off all connections smoothly, easy to install. Easy for camping stove to transport fuel smoothly.