This tube sheet coil assembly kit is designed to use with Pentair MasterTemp pool and spa heater models 300NA, 300LP and also compatible with Pentair Sta-Rite Max-E-Therm pool and spa heater model 333. It includes 333k-BTU and coil tubesheet sealing o-ring kit.

Product Features

• Tube sheet coil assembly replacement kit
• Fits Pentair MasterTemp pool and spa heater models 300NA, 300LP
• Also fits Pentair Sta-Rite Max-E-Therm pool and spa heater model 333
• Includes 333k-BTU and coil tubesheet sealing o-ring kit