2 Guardian Pool Spa Filter Replaces Pleatco PTL50PFilbur FC-0151 Filter Cartridge for Swimming Pool and Spa<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>4ch-50</li><li>Diameter 4 5/8''</li><li>Length 14 3/4''</li><li>1 1/2'' MPT， Fine Pipe threaded</li><li>PTL50P4-4</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41l0sSjeWLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41wnM9Sy6pL.jpg" noproxy>