The Sundance 6540-480 R is a compatible replacement for the following spa filters:
The Sundance Spas 6540-480 Comp. Pool & Spa Filter is a pool filter cartridge measuring 7 1/2" x 14 3/4" and containing 65 square feet of media area. This pool water filter features a Closed Castle top style and 2 1/8" Open bottom style. Maintaining fresh and clear water is easy with this compatible Sundance filter.