Waterway Clearwater Filter Lid O-Ring O-474 805-0383<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>14" Inner Diameter</li><li>3/16" Cross Section</li></ul></div><img src="http://ecx.images-amazon.com/images/I/21B5jG1P-hL.jpg" noproxy>