Pentair 77707-0232 Tube Sheet Coil Assembly Replacement Kit Pool and Spa Heater Tube sheet coil assembly replacement kit Fits Pentair MasterTemp pool and spa heater models 175NA, 175LP, 200NA, 200LP Also fits Pentair Sta-Rite Max-E-Therm pool and spa heater model 200 Includes 200k-BTU and coil tubesheet sealing o-ring kit