Pleatco PXST125-M Replacement Cartridge for Upgrade to Hayward X-Stream 100 (MICROBAN)， 1 Cartridge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Replacement cartridge for upgrade to Hayward x-stream 100</li><li>50 Percent open ABS free flow cores maximize water flow through reemay filter media</li><li>Antimicrobial end caps resist chlorine degradation and provide support to filter material for a longer life span</li><li>Replaces unicel and filbur; made in usa; microban inhibits the growth of stain and odor causing microbes like bacteria and algea</li><li>Measures 8-15/16-inches in diameter by 17-3/8-inches in length and 4-inches of top and bottom hole diameters</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41kZ0Vl83BL.jpg" noproxy>