Super-Pro | O-420-9 | FNS/FHS Filter Tank O-Ring

The Super-Pro O-420-9 is a replacement tank O-ring designed for compatible FNS and FHS pool filter assemblies. The O-ring provides a sealing interface between mating filter tank components, helping prevent water leakage and maintain proper pressure during normal filtration and backwashing.

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Key Features
• Designed for compatible FNS/FHS filters
• Replacement filter tank O-ring
• Helps provide a watertight seal
• Helps prevent leakage between tank components
• Designed for pool filter maintenance and repair
• Super-Pro part number O-420-9

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Product Overview
The Super-Pro O-420-9 FNS/FHS Tank O-Ring is designed to provide a proper seal within compatible FNS and FHS pool filter assemblies. The O-ring sits between mating tank components and helps maintain a watertight connection during normal filtration and backwashing.

This replacement seal provides a practical option when the original O-ring becomes worn, damaged, or compressed. It is intended for compatible FNS/FHS filter systems and should be matched to the existing filter model before installation.