Schedule 40 Gray Cap blocks flow in a PVC piping system screwing onto a male NPT pipe end. One end of our gray PVC cap has a dome like shape and the other end is a female threaded NPT connection. Made from rigid PVC, the plastic plumbing fittings we carry are guaranteed to last.
All of our schedule 40 fittings conform to ASTM D1785
NSF 14, CSA B137.0/B137.3