BLUEFIRE Standard Propane Gas is the most popular disposal portable fuel gas cylinder available on the North American market, pre-filled net weight 14.1oz, versatile and powerful, working with almost all propane torch head and other devices that equipped the 1" CGA600 US standard connectors. Perfect fuel for both business and home applications, whether you are cooking or welding, BLUEFIRE standard propane is your best choice. US DOT and Canada TC certified factory, buy with confidence!