The Sunbelt 5 x 13 R is a compatible replacement for the following pool filters:
The Sunbelt Spas Comp. Pool and Spa Filter Replacement is a pool water filter with Open top & bottom styles measuring 2 1/8 inches. This compatible Sun Ray Spas filter cartridge offers a media area of 50 square feet for the reduction of contaminants in your pool and spa water. In addition, this spa filter replacement measures 4 15/16 inches in diameter and 13 5/16 inches in length.