Description
Replacement tube sheet coil (heat exchanger) assembly for Pentair MasterTemp 400 heaters (400NA, 400LP) and Max-E-Therm 400 NA/LP units made after 1/12/2009. It swaps out a corroded or leaking tube bundle to restore proper heat transfer and heater efficiency. The OEM kit includes the coil and sealing O-rings; verify your heater’s build date to match the post-2008/new-design water system.
Includes: Tube sheet coil assembly, ignitor and gasket, insulation kit, high-temp RTV silicone, O-rings, bypass valve, blower adapter gasket
