3 Guardian Pool Spa Filter Replaces Unicel C-4335 - Pleatco Prb35-In - Fc-2385 -Rainbow Dynamic Series Iv<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>-Bottom Opening: 2 - 1/8"</li><li>-Top Opening: 2 - 1/8"</li><li>-Outside Diameter: 4 - 15/16" (Also replaces 5")</li><li>-Length: 9 - 1/4" (9 1/4")</li><li>Anti-microbial Media material</li><li>Filter Area: 35 SQ FT</li><li>Unicel - C-4335RA (C4335RA)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Omr8Eb0gL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41G8J3ukDhL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51jkVjL971L.jpg" noproxy>