Ultratane Butane Fuel by Master Appliance®. Size 15/16 oz. Butane Fuel Refills for use with all Master butane powered micro torches and soldering irons. Features: TRIPLE REFINED BUTANE FORMULA reduces clogging of filters Special vapor pressure promotes consistent ignition Contains no CFC’s, canister includes single-piece universal filling tip Recommended butane for refilling all Ultratorch® soldering irons & Master Butane micro torches and glue guns 10448 meet limited quantity class markings and can be shipped via ground transportation without hazardous material charges TRIPLE REFINED FORMULA reduces clogging of filters Recommended butane for refilling all Ultratorch® & Master Butane-powered products This triple refined formula consists of liquefied petroleum gas, which was developed to reduce clogging of fuel filters and promote consistent ignition for the lifespan of your heat tool. Ultratane® butane fuel contains no chlorofluorocarbons (CFCs) and comes in two convenient sizes, so you never miss an opportunity to use your Master butane-powered products. With the right type of fuel, your favorite tools to use can perform a wide variety of tasks. Ultratane® butane fuel is the cleanest burning butane fuel on the market and has been used by thousands of satisfied customers throughout the USA. Butane-powered heat tools have the distinct advantage of being completely cordless, so you can move from one application to the next without worrying about portability and reaching a specific range of required heat. Many of the storage and carrying cases that come with heat guns, soldering irons, and torches contain additional slots, so you can keep extra butane fuel on hand for emergencies. Master Appliance offers butane fuel refills for all of its multifunctional, portable soldering irons, flameless butane tools, and butane micro torches. The butane refills help tools perform a variety of tasks. From soldering and desoldering, shrinking and terminating insulated solder preforms, and environmental splices. Master is proud to supply the cleanest burning butane fuel on the market to thousands of satisfied users throughout the USA. Where professional quality and ease of use are of top priority, Master Appliance® will hit the spot. The company offers a full line of highly effective electric heat guns, soldering iron/heat tools, butane powered microtorches, glue guns and heat activated connectors and materials. The first professional-quality heat gun from Master Appliance saw the world in 1958 and met the heating needs of the maintenance, repair, and production applications of that time. Today's Master heat tool products are built with the same insistence on quality and attention to detail as it was 70 years ago, with added state-of-the-art design and modern technology.