Unicel 4CH-50 Replacement Filter Cartridge for 50 Square Foot Top Load<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Diameter: 4 5/8-inch; length: 14 3/4-inch</li><li>Top end cap: molded cone handle， 0-inch inner diameter; bottom end cap: 1-1/2-inch male thread/mpt， 0-inch inner diameter</li><li>Pleat count: 225; filter media: 3-ounce reemay 2033; filter area: 50 square feet</li><li>Get more efficient filtration and better water clarity with Unicel filters</li><li>Longer time between cleanings; meets oem specifications</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31i8OW2vS5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/313iUMjJnCL.jpg" noproxy>