Pleatco PWW150-M4 Replacement Cartridge for Upgrade to Waterway Pool 150， Leisure Bay WW-150， 1 Cartridge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Replacement cartridge for upgrade to waterway pool 150， leisure bay ww-150 models</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 C-9403 and filbur FC-2969; made in usa; microban inhibits the growth of stain and odor causing microbes like bacteria and algea</li><li>Measures 10-inches in diameter by 25-1/4-inches in length and 6-inches of top and bottom hole diameters</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41zF-600cLL.jpg" noproxy>