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Harmsco Calypso Blue Cartridges are designed to fit into 20" BIG BLUE drop-in filter housings
Bottled water equivalent - 22
Filtration Design: Precoat and GAC
Capacity - varies according to water hardness
Harmsco 921-50 Cartridge 19 3/4" (24 pack) New Harmsco Calypso Blue Cartridges areApplication: Industrial grade high efficiency cartridge 50 micron Please note this item is sold in minimum quantities multiples of 24. Please also note that the price shown is per cartridge, not per case. Designed for HIF, BC, HMC and FSSS Filter Housings. Highly efficient filter cartridges made of pleated Polyester Plus filter media. The industrys largest surface area. Features: Pleated design for more surface area FDA approved materials NSF 61