The ProPEX Engineered Polymer (EP) Plug terminates the end of Uponor PEX-a pipe in residential and commercial plumbing, fire safety, and hydronic heating and cooling applications. Approved for temporary or permanent usage, the plug features the durable, reliable ProPEX connection that professionals have come to trust in all their PEX piping projects. Combine with Uponor PEX-a pipe, Uponor engineered polymer (EP) fittings, Uponor LF brass valves, and Uponor ProPEX out-of-the-wall support systems for a complete lead-free solution from inlet to faucet without the need for torches, glues, solvents, gauges, or fire-watch requirements. Note that this product requires the use of a ProPEX expansion tool and ProPEX rings (sold separately) to make the ProPEX connection. Color: Black.