Unicel C-7472-4 Replacement Filter Cartridge Set (4-Pack) for Pentair Clean & Clear Plus 520 & Waterway Crystal Water 525 | 125 Sq. Ft. Each | 32 1/16" Above Ground Pool Light Fixtures replace the shaft seal at

replace the shaft seal at the same time — the seal plate and shaft seal are a matched interface

Before installing the new base

Pentair Part Number PKG98 Pro Tip

This product also helps to remove metal stains and scale in older vinyl pools

NS24 - 59002900

Unicel C-7472-4 Replacement Filter Cartridge Set (4-Pack) for Pentair Clean & Clear Plus 520 & Waterway Crystal Water 525 | 125 Sq. Ft. Each | 32 1/16" Above Ground Pool Light Fixtures replace the shaft seal atThe Unicel C 7472 4 is a complete four cartridge replacement set for the Pentair Clean & Clear Plus 520 (CCP520) and Waterway Crystal Water 525 filter systems. Each 7000 Series cartridge delivers 125 sq. ft. of filtration area 500 sq. ft. combined through 163 precision pleats of 4 oz. Reemay 2040 spun bonded polyester. One order covers your entire cartridge bank. Complete Service Pack 4 Cartridges Included This listing includes four (4) cartridges the