Description
Replaces the coil/tubesheet sealing O-rings on Sta-Rite Max-E-Therm SR400 and Pentair MasterTemp 400NA/400LP heaters (Sta-Rite 77707-0119). It seals the heat-exchanger tubes to the tube sheet to prevent water leaks in the heater manifold. The kit includes 12 OEM O-rings for 400K BTU models.
Includes: Set of 12 O-rings
