Unicel 5CH-35 Replacement Filter Cartridge for 35 Square Foot Elite Spas By Maax<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Diameter: 5 5/8-inch; length: 8-inch</li><li>Top end cap: semi-circular handle， 0-inch inner diameter; bottom end cap: 1-1/2-inch male thread/mpt， 0-inch inner diameter</li><li>Pleat count: 203; filter media: 3-ounce reemay 2033; filter area: 35 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/41I45UtyuBL.jpg" noproxy>