Pentair PacFab FNS Standpipe (190043) pentairamerican The Hayward extension collar with

The Hayward extension collar with inserts is designed for compatible drain and sump applications where additional collar height or replacement support is needed

That makes the repair more focused and more efficient

A circuit board is useful because it serves as a central control component for supported electrical and ignition-related functions inside the heater

Replacing worn

Pentair PacFab FNS Standpipe (190043) pentairamerican The Hayward extension collar withThis standpipe is an internal replacement part for compatible PacFab FNS DE filter systems. It helps route water through the filters internal assembly and plays a role in keeping filtered return water separated from incoming debris laden flow. Replacing a brittle, cracked, or damaged standpipe can help correct filtration issues, DE bypass, or poor internal alignment. Internal standpipe for compatible FNS DE filters Supports proper water routing inside