3M 375L Film Disc, Skip Slit Liner, 5 in, P600 Grit, Aluminum Oxide, PK250 98381A669 Water Valve Ways 2 Way Valve Water Valve Ways 2 Way Valve Starting Configuration Normally Closed Inlet Connection Type NPTF Outlet Connection Type NPTF Voltage 120V AC Valve Type High Flow Operation Type Pilot Operated Seal Material NBR Operating Pressure Differential Maximum 150 psi Air Inert Gas These controls connect to a compatible TIG welder with a cable and are suitable for welding applications where obstructions in the work area might interfere with wireless remotes Red Maximum Operating Speed 12000 Abrasive Material Aluminum Oxide Grade Extra Fine Grit P600 Series 375L Abrasive Type Open Coat Backing Material Film Color Brown