The Viking PWW10 R is a compatible replacement for the following spa filter cartridges:
The Viking Spas PWW10 Comp. Pool Filter Cartridge is a pool filter cartridge that purifies swimming pool and spa water through through 10 sq. ft. of media area. The dimensions of this spa filter replacement are 4 1/4" x 4". This compatible Viking Spas filter features a 1 15/16" Open top style and 1 9/10" Open bottom style with Slots.