Pentair Lid O-Ring #2-357 | SuperFlo, SuperMax & OptiFlo Pumps | 357255Z Drains ⚠️ IMPORTANT: Confirm Quantity Needed

⚠️ IMPORTANT: Confirm Quantity Needed for Your Spa

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

Pentair MasterTemp 460805 Air Intake Kit listed as optional accessory for MasterTemp Heater HD series

effective 8/00

Pentair Lid O-Ring #2-357 | SuperFlo, SuperMax & OptiFlo Pumps | 357255Z Drains ⚠️ IMPORTANT: Confirm Quantity NeededThe 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