Darlly 50401 FC-3637 C-5637 PPM40 Filter Cartridge kempusa Matching the correct auto-reset thermostat

Matching the correct auto-reset thermostat helps preserve intended heater behavior and cleaner service results

Hayward CL200 and CL220 compression nut set

Useful when the original handle is worn or damaged

A spring is one of the internal parts that helps a dial valve feel responsive and mechanically complete

Hayward lid removal tool

Darlly 50401 FC-3637 C-5637 PPM40 Filter Cartridge kempusa Matching the correct auto-reset thermostatA replacement filter cartridge helps maintain the debris trapping capacity the system was designed to have, and this Darlly cartridge is designed for compatible applications referencing FC 3637, C 5637, and PPM40. When a cartridge becomes restricted or worn out, filtration results can feel less reliable than they should. The grouped part references give this cartridge practical value because filter matching is most dependable when based on recognized