The genuine OEM Pentair SuperFlo Pump Lid O-Ring 357255 creates the watertight barrier between the pump lid and housing on Pentair SuperFlo and SuperMax pool pumps, including SuperFlo VS and VST models from both the pre-November 2020 and post-October 2020 production runs. Replacing a worn or compressed O-ring with this factory-specification part restores proper vacuum and pressure within the pump, preventing air leaks that degrade priming and flow performance. Compatible with both aboveground and inground pool and spa pump configurations, it is one of the most practical maintenance items any pool owner can keep on hand.

Key Benefits

• Airtight Seal Restoration: Re-establishes the vacuum-tight closure between lid and pump body, preventing air ingestion that weakens priming and reduces flow.
• Works Above and Below Ground: Fits both aboveground and inground pool and spa pump setups, making it a single solution regardless of your installation type.
• Chemical-Resistant Compound: Manufactured from a material blend that holds up against chlorine, bromine, and other common pool sanitizers without cracking or swelling.
• DIY-Friendly Replacement: Slides into the lid groove without special tools, making it a quick service item that any pool owner can handle independently.
• Budget-Conscious Maintenance: An inexpensive part that delivers outsized value by preventing costly pump damage, air-lock issues, and wasted energy from seal failure.
• Proactive System Protection: Swapping this O-ring on a regular schedule prevents small seal degradation from escalating into major pump repairs or component failures.

Compatibility

• Pentair SuperFlo and SuperMax Pool Pumps
• SuperFlo VS and VST models post-October 2020
• pre-November 2020: SuperFlo VS and VST models

Specifications

• Brand: Pentair
• Part Number: 357255

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pentair superflo pump o-ring 357255