Ultratane Butane Fuel, 5-1/8 oz. Master Appliance offers butane refills for all of its multifunctional, portable soldering irons, flameless butane tools, and butane torches. The butane refills help our tools perform a variety of tasks: from soldering and desoldering, shrinking and terminating insulated solder perfoms, and environmental splices. Triple-refined formula reduces clogging of filters. Special vapor pressure promotes consistent ignition. Contains no CFC’s, canister includes single-piece universal filling tip. Recommended butane refills for all Ultratorch & Master Butane-powered products. Three convenient sizes 51773-EA Yes - LEAD