- New
28842 is an Elkhart Supply BestPEX straight adapter designed for compatible RV fresh-water plumbing systems. It features a 1/2" PEX connection and a 1/2" male pipe thread (MPT) connection. The fitting is made of high-impact plastic and has a black finish. It provides a practical connection between compatible 1/2" PEX tubing and a female 1/2" threaded fitting. Verify the existing plumbing configuration before installation.