Spears 437-101 PVC Pipe Fitting, Bushing, Schedule 40, White, 3/4" Spigot x 1/2" Socket (Pack of 10) Bushing for connecting two pipes with different diameters Spigot on one end and socket on the other end for connecting two unthreaded pipes PVC for chemical and corrosion resistance, strength, and light weight Maximum operating temperature of 140 degrees F Meets ASTM D1784 and D2466 standards for quality assurance