Pentair Sta-Rite DuraGlas II Seal Kit (PP4200) o-rings When the air side begins

When the air side begins to feel underwhelming

Improves cosmetic finish and usability clarity

A timer motor helps advance the dial in a compatible mechanical timer

2 inch slip x 2-1/2 inch spigot connection

This cartridge has practical value because replacing the filter element is often the simplest way to restore water-cleaning performance without changing the full housing

Pentair Sta-Rite DuraGlas II Seal Kit (PP4200) o-rings When the air side beginsThis Pentair Sta Rite replacement is built for seal replacement and helps refresh sealing points on DuraGlas II pump assemblies. It replaces flattened or hardened seals during wet end service, making it a practical choice when the original part is cracked, worn, leaking, stripped, brittle, or missing. It is especially useful for targeted repairs where replacing a larger pump, filter, or cleaner assembly is not necessary. Confirm the part number, model