This Replacement filter cartridge has the technical specifications as Unicel # C-7699, Pleatco # PFAB100, Filbur # FC-1950 and OEM # R173300. It is a best quality filter cartridge for Pentair Pool Products-Pac Fab Re, Wet Institute, Pentair Pool Products. With its 22 1/8 inch length and 7 7/8 inch width, this filter cartridge manages the top load of 100 sq ft. Very easy to install and provides clean and clear water for your pool and spa.
I purchased Unicel: C-7699 to replace my existing hot tub filter cartridge. The replacement cartridge was exactly as showed and was shipped very quickly.