The Master Appliance MASTER PROHEAT Plastic Welding Kit, No. PH-1400WK, is a self-contained, general purpose hot air welding system for fast and simple fabrication and repair of rigid and flexible plastics, auto bumpers, tarps, liners, covers, tents, inflatables and more. This kit is built around the compact, lightweight MASTER PROHEAT LCD Dial-in Electronic Heat Gun, No. PH-1400. The heat gun’s dial-in feature offers 10-degree increment temperature control from 130 to 1,000 degrees F and control of airflow from 4 to 16 cfm. The magnetic key lock-in feature makes it easy to “lock-in” proper temperature and airflow for each welding application.