C-4 regular bodied, fast set CPVC orange solvent cement designed for use on CPVC pipe and fittings, Schedule 80 and copper tube size (CTS) CPVC hot and cold water pipe and fittings up to 4" diameter. NSF certified for use in potable water, sewer and drain waste, and vent systems. NSF certified, UPC listed. Meets ASTM F-493.