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The Unicel C-6900 R is a compatible replacement for the following pool filters:
The Unicel C-6900 Comp. Pool Filter- Pentair Quad 100 is a compatible replacement pool filter cartridge that uses Diatomaceous Earth to reduce contaminants in pool water down to 5 microns. This compatible Unicel pool filter, also known as the Filbur FC-1963, measures 6 1/4" x 32 3/4" and has 25 square feet of pleated filter media.