Thermal Arc 707618-9PKD Thermal Arc Suppresion KitThis kit suits the following Power Source Range: PowerMaster 350, PowerMaster 350 Pulse, PowerMaster 500, PowerMaster 500P PowerMaster 350 Pulse CCC, PowerMaster 500 CCC, PowerMaster 500 Pulse CCC, PowerMaster 350 CCC, TransMig 500i, TransMig 500P.