Pentair Tube Sheet Coil Assembly Replacement Kit for 400K BTU Heaters | 474065 C7483 If the strainer lid O-ring

If the strainer lid O-ring is also showing wear

Select J-300 and J-400 models use this pleated cartridge together with a separate secondary depth filter (such as a ProClarity® Depth Filter)

propelling the unit across the pool floor and walls

Note from Unicel: Harmsco original is 7-3/4" OD

apply Pentair R172351 Lifeguard Silicone Lubricant to all O-rings to ensure a proper seal and prevent premature cracking

Pentair Tube Sheet Coil Assembly Replacement Kit for 400K BTU Heaters | 474065 C7483 If the strainer lid O-ringTube sheet coil assembly replacement kit Fits Pentair MasterTemp HD series pool and spa heater models 400NA, 400 LP1 Also fits Pentair Sta Rite Max E Therm HD series pool and spa heater model 400 Includes coil sealing o ring kit Measures 18 1 2 inch length by 10 1 2 inch height by 18 1 2 inch width