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Swimming pool multiport valve top lid O-ring used to seal between the MPV lid and valve body

Swimming Pool Multiport Valve (MPV) Top Lid O-Ring – Replacement Seal

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The Swimming Pool Multiport Valve (MPV) Top Lid O-Ring is a critical sealing component that fits between the top lid and the body of the multiport valve.

Its function is to create a watertight seal, preventing leaks and maintaining correct internal pressure during filtration, backwashing, rinsing, and other valve operations.

Over time, exposure to chemicals, pressure, and temperature changes can cause the O-ring to harden, flatten, or crack.

Replacing a worn MPV top lid O-ring helps restore proper sealing, prevents external water leaks, and ensures reliable valve performance.

This replacement O-ring is ideal for routine maintenance and servicing of swimming pool sand filter multiport valves.

Key Features & Benefits

  • Seals between the MPV top lid and valve body

  • Helps prevent water leaks and pressure loss

  • Maintains proper multiport valve operation

  • Essential during MPV servicing or repairs

  • Durable material designed for pool environments

  • Simple and cost-effective replacement part

Ideal For

  • Servicing swimming pool sand filter multiport valves

  • Replacing flattened, brittle, or leaking O-rings

  • Preventative maintenance to avoid valve leaks