Propane adapter Z22 + Gas refill adapter Z15Refill adapter Z15 can transfer liquid gas from one EN417 Lindal valve canister to another EN417 Lindal valve canister. By using protane adapter Z22 with Z15, you can transfer liquid gas from one small 16oz/1lb propane gas tank to another EN417 Lindal valve canister. Gas Refill Adapter Z15USES:Can shift isobutane gas from Lindal Valve gas canister to Lindal Valve gas canister. It is a useful tool for your camping, backpacking, hunting, BBQ, barbecue and other outdoor occasions. *OUTDOOR USE ONLY*