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The Filbur FC-3746 is the replacement filter for the Unicel C-6622 R.
Guaranteed to fit or your money back!
The Unicel C-6622 Comp Pool & Spa Filter- Coleco DR-22 is a replacement pool filter cartridge with 30 sq. ft. of media area that traps contaminants in pool & spa water in its sharp pleat folds. This compatible Unicel pool filter, also known as the Filbur FC-3746, measures 6 1/2" x 22" with a 3" Open top and bottom styles.