BernzOmatic Soldering and Brazing Torch Head (14.1-oz)The Bernzomatic Advanced Performance Torch is built with instant on off ignition, a swirl flame profile and flame lock option for continuous use. It is pressure regulated for consistent performance when inverted, making it ideal for large diameter soldering, light brazing, woodworking and cooking. The Advanced Performance Torch is compatible with 14. 1 oz Bernzomatic MAP Pro fuel and 14. 1 oz and 16 oz Bernzomatic Propane fuel, sold separately.