Alumina Nozzles, 5/16 in, For Torch 9; 17; 18; 20; 22; 26FeaturesHigh impact resistance, heat resistance and thermal conductivity, and resist splatter buildupFor use with A-150, A-200, A-250, W-350, W-410, W-225 Modular, and W-500 Pencil Auto TIG Torches