This 1?” Sch 80 PVC True Union Ball Valve, EPDM, (FNPT x FNPT) is a true union ball valve open and closes a ball inside with a full sized hole with a quarter turn of the handle. The integrated unions allow the valve to be easily installed or removed. a male adaptor, threaded pipe or pipe nipple connects to this part. Sch 80 PVC is robust and durable, perfect for commercial and industrial applications. EPDM seals provide effective sealing with resistances to several chemicals over a wide range of temperatures. Why pay more at your local store? Shop Petram PVC Supply for your best price.