The Maax Spas 5 x 13 R is a compatible replacement for the following pool filter cartridges:
The Maax Spas Comp. Pool and Spa Filter Replacement is a pool water filter built with 50 square feet of media area. This compatible Maax Spas filter cartridge is constructed with Open 2 1/8" top/bottom styles, and measures 4 15/16" x 13 5/16". This spa filter replacement reduces contaminants in swimming pool and spa water.