The Marquis 370-217 R is a compatible replacement for the following pool filters:
The Marquis Spa 370-217 Comp. Pool Filter Cartridge is a pool filter designed to reduce impurities in swimming pool and spa water through 50 sq. ft. of filter area. This compatible Marquis Spa filter measures 5 3/16" x 14 1/8". In addition, this spa filter replacement has a Closed top style with Loop and 1 5/8" Open bottom style.