Pentair Backup Ring for Clean & Clear Cartridge Filters

The backup ring provides essential structural support to your filter assembly. It helps maintain the integrity of the housing and ensures a secure, airtight seal, which prevents leaks and keeps the filtration system running efficiently.

You should inspect the ring during your routine filter cleaning. If you notice visible cracks, warping, or if the ring feels brittle or loose when seated, it is time for a replacement to ensure your filter maintains a proper seal.

This specific backup ring is designed for the Pentair Clean & Clear cartridge filter series. Always verify your specific filter model number against the manufacturer's parts diagram to ensure a precise fit before purchasing.

Generally, no special tools are required. The ring is designed to seat into the filter assembly by hand, though you should ensure the area is clean and free of debris to guarantee a proper seal.

While you can technically reuse an O-ring if it is in perfect condition, it is best practice to replace the O-ring whenever you replace the backup ring. Replacing both simultaneously ensures the best possible seal and prevents potential leaks.