Use the Gripwerks 1/2 in. x 1/2 in. Straight Coupling Push to Connect to join copper, CPVC, PE-RT or PEX pipe together without the need to solder, glue or union. Just insert the pipe and the stainless steel teeth bite down and grip tight, while a specially formulated O-ring compresses to create a perfect seal. Disassembly of the straight coupling is just as fast using the simple disconnect tool so fittings and valves can be easily changed and reused. Get this straight coupling and get a grip on your next plumbing project.