Pentair Lid O-Ring #2-357 | SuperFlo, SuperMax & OptiFlo Pumps | 357255Z Drains confirm your filter system's exact

confirm your filter system's exact model number and locate the OEM part number on your existing cartridge or owner's manual — Hayward system names (C1250

Extra heavy duty net and real feel basketball

0 HP W3SP15932S Compatibility is based on Hayward parts documentation and available OEM records

Replacing it restores the seal and returns the filter to full operating pressure

Pentair Lid O-Ring #2-357 | SuperFlo, SuperMax & OptiFlo Pumps | 357255Z Drains confirm your filter system's exactThe Pentair Lid O Ring #2 357 (357255Z) is the OEM replacement strainer lid seal for Pentair SuperFlo, SuperMax, and OptiFlo pump families, including variable speed models. This O ring seats between the strainer pot body and the clear lid, creating the airtight, watertight seal that keeps the pump primed and prevents air from entering the suction side of the system. When this seal degrades through UV exposure, chemical wear, or compression set the