The Horizon 303575 R is a compatible replacement for the following pool filters:
The Horizon 303575 Comp. Pool and Spa Filter Cartridge is a pool filter cartridge that measures 4 5/8" x 4 5/8". This compatible Horizon filter replacement has a closed top hole with a Crescent Handle top style, and a 1 1/2" MPT bottom style. Maintaining clean and clear pool and spa water is easy with this pool water filter, which features 13 square feet of media area.