This Compression Coupling is a type of coupling that is used to connect two pipes or a pipe to a fixture or valve. It is rated at 200 PSI static pressure at 72 degrees Fahrenheit. NDS® Flow Management offers a range of engineered specialty fittings and valves. From expansion repair and compression couplings, to spring, swing check and ball valves, we offer a full line of products for irrigation, plumbing, pool and spa, and industrial applications.