PVC true union ball valves offer a simple way to start and stop flow in a system. The term true union means that the carrier or main part of the valve can be removed from the piping system and be either repaired or replaced without completely disassembling the system, saving time and money. ERA true union ball valves are made from durable dark gray Schedule 80 PVC and have an easy-to-grip red handle that turns with minimal effort. Unless specifically noted, ERA PVC is not NSF certified.