Amazon.com : CAMPINGMOON Outdoor Camping Butane Gas Refill Adapter (Butane Gas to EN417 Lindal Valve Canister to 1lb Propane Tank (Z11/Z15/Z22)) : Sports & Outdoors
Outdoor Refill Adapter from Nozzle Type Canister to Isobutane Canister Z11/Z15 - campingmoon
G-Works Gas Saver: Canister Fuel Transfer Adapter Review - SectionHiker.com