Pleatco PRB17.5SF-PAIR Replacement Cartridge for Dynamic Series IV - DSF 35, etc

Replacement cartridge for dynamic series IV, DSF 35, waterway models
50 Percent open ABS free flow cores maximize water flow through reemay filter media
Antimicrobial end caps resist chlorine degradation and provide support to filter material for a longer life span
Replaces unicel and filbur; made in usa; microban inhibits the growth of stain and odor causing microbes like bacteria and algea
Measures 5-inches in diameter by 4 5/8-inches in length and 2-1/8-inches of top and bottom hole diameters

Not just a filter cartridge, Pleatco is a complete filtration system Pleatco Free-Flow cores, REEMAY filtration fabric, antimicrobial endcaps and Superbond bands make the Pleatco product encompass to differentiate the key components of why Pleatco Filter Cartridges are the best products on the market. Pleatco Free-Flow cores allow for the free flow of water through the filtration fabric increasing the effectiveness of the filter.