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Replacement cartridge for the Red Sea Canister filter (25 Micron, 25 sq ft). Dimensions: 8.5" wide and 8 3/8" tall. Center hole is 4" wide.
Details: Replacement cartridge for the Red Sea Ocean Clear 325 Canister Filter (25 Micron, 25 sq ft). Can also be used with any of the Nu-Clear Canister Filters.