Part #: 7254260. This copper installation adaptor kit allows you to connect your softener or central water system to 3/4" copper plumbing. Adaptors fit directly into the 3/4" threaded bypass (7370286) that now comes with the Kenmore 625.383500, Whirlpool WHES18, WHES3T, WHES30, WHES33, WHELJ1, EcoPure EP27, EP30, EP31, EP34, EP40, EP42, EPHY, EPHS, Rheem RHS32, and Morton M20, M27, M30, MC30, M34, MHY, MCWF systems.