The Pentair R173213 R is a compatible replacement for the following pool water filters:
The Pentair R173213 Comp. Replacement Pool Filter is a spa filter cartridge with 6" Open top/bottom holes. This pool filter cartridge measures 10 1/16" x 8 9/16" and is constructed with 50 sq. ft. of media area. Witht his compatible Pentair pool filter you will be able to purify the water in your swimming pool or spa.