The Pentair R173210 R is a compatible replacement for the following pool filters:
The Pentair R173210 Comp. Pool & Spa Filter Cartridge is a hot tub water filter that features dimensions of 7" x 19 5/8". This pool filter cartridge is constructed with Open top and bottom styles that measure 3". Featuring 75 sq. ft. of media area, this compatible Pentair pool filter improves the quality and clarity of swimming pool and spa water.