The Apollo Spas 6 X 8 R is a compatible replacement for the following pool filter cartridges:
The Apollo Spas Comp Pool and Spa Filter Replacement is a pool and spa filter with 40 sq. ft. of media area and a media weight of 3 oz. This pleated pool filter measures 6" x 8 1/4", has a closed top hole with a Crescent Handle top style, and a 1 1/2" SAE bottom style. This compatible Apollo Spas filter replacement purifies swimming pool and spa water.