- New
28816 is an Elkhart Supply EcoPoly 90-degree swivel elbow designed for compatible RV fresh-water plumbing systems. It features a 1/2" PEX connection and a 1/2" female pipe thread swivel connection. Made of black polysulfone, this fitting allows the threaded connection to swivel, helping facilitate installation in confined plumbing spaces. It is intended for compatible potable-water applications in RVs and trailers. Verify the existing fitting configuration before installation.