Harmsco Calypso Blue 4-1/2 in Pleated Polyester Filter Cartridge

Harmsco Calypso Blue cartridges are pleated polyester replacements for 4-1/2 in diameter ("Big Blue" style) housings, with the surface area for longer runs, lower pressure drop and fewer change-outs. They come in Premium (Polyester-Plus media), Harmsco-Free (100% synthetic composite media) and WaterBetter economy grades, and are cleanable and reusable in most applications.

• 0.35 to 50 micron nominal ratings (1 micron absolute available separately); 9-3/4 in and 20 in lengths; 4-1/2 in outside diameter
• Rated to 140 F; pliable PVC or urethane end caps, ABS or PVC center tube, shrink wrapped
• FDA approved materials, NSF 61 certified
• Maximum flow 12 GPM (9-3/4 in) and 26 GPM (20 in) Premium; 8 and 20 GPM Harmsco-Free; 10 and 20 GPM WaterBetter

Sold by the case: 8 for the 9-3/4 in length, 4 for the 20 in length. Flow rates are guidelines; Harmsco recommends 50 to 70 percent of the maximum.