This heat welding gun comes with a Leister Triac ST heat gun for consistent and reliable heat output. A single dial on the back controls output temperature from 104 1290F. The standard 11/4 outlet fits a variety of nozzles. Also includes a pencil tip nozzle (No. 963), triangular speed welding tip for triangular or half moon rod (No. 961), round speed welding tip for round rod (No. 962), and carrying case.