Rheem Ruud Rheem Ruud 82-21806-17 Sweat/RotoLock (FM) $223.81 Rheem Ruud 82-21806-17 Replacement PartIncludes:(1) - Sweat/RotoLock (FM) (82-21806-17)Replaces Old Rheem Ruud Part NumbersThere are no older part numbers.Other Part Numbers662766124507Fits Models:(Press ctrl + F to find model number below.)Various...