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The Pentair R173212 R is a compatible replacement for the following pool water filters:
The Pentair R173212 Comp Pool & Spa Filter Cartridge is a spa filter replacement measuring 7" x 11 13/16" with 3" Open top and bottom holes. This compatible Pentair pool filter features high quality media and 175 sq. ft. of area for the reduction of contaminants in swimming pool and spa water.