Heat Gun Attachment Nozzle Type Welder Outside Diameter 1 1/4 in Compatible with Manufacturer Part Number PH-1200 PH-1400 PH-1500 PH-1610 Compatible with Grainger Part Number 31EN99 3KH79 3W771 3ZLU1 3ZLU3 5PYP5 Includes Welder Nozzle Material Application Adhesives Heat Shrink Tubing Plastics Sealers