Spears 837-530C - CPVC Pipe Fitting, Bushing, Schedule 80, 6" Spigot x 3" SocketCPVC Pipe Fitting, Bushing, Schedule 80, 6" Spigot x 3" Socket Bushing for connecting two pipes with different diameters Spigot connection on one end and socket opening on the other for connecting two pipes CPVC for chemical and corrosion resistance, high strength, and better resistance to high temperatures and pressures than PVC Maximum operating temperature of 200 degrees F Meets ASTM D1784 and F439 standards for quality assurance, certified by NSF