Rainbow Check Valve “O” Ring – Replacement Sealing Gasket (SKU 17-2451)

Restore proper sealing and protect downstream equipment with the Rainbow Check Valve “O” Ring (SKU 17-2451). This OEM-spec replacement O-ring is designed to fit Rainbow check valve assemblies, ensuring reliable one-way flow while preventing leaks and chemical backflow in pool and spa systems.

Check valve O-rings are exposed to constant pressure, heat, and aggressive pool or spa chemicals. Over time, they can flatten, crack, or lose elasticity—leading to leaks or reduced valve effectiveness. Replacing the O-ring with the correct factory-matched seal helps restore proper valve function and protects sensitive components such as heaters, pumps, and chlorinators.

Manufactured from durable, chemical-resistant elastomer, this replacement gasket is engineered for use with compatible Rainbow check valves. It is ideal for routine maintenance, leak repairs, or servicing chemical feeder and circulation lines.

Key Features:
✔️ OEM replacement O-ring for Rainbow check valves
✔️ SKU 17-2451 direct replacement
✔️ Restores watertight, chemical-resistant sealing
✔️ Helps prevent leaks and chemical backflow
✔️ Ideal for pool and spa circulation system maintenance

Maintain safe, leak-free operation with the Rainbow Check Valve “O” Ring – SKU 17-2451, a small but critical sealing component for dependable pool and spa system performance.