Podoy 3 Pack O Ring Water Filter 63597174C 3M O Ring Water Filter for Aqua-Pure water filtration system O-Ring<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Part Number: 63597174C</li><li>Approximately Diameter :Inside 3.5" x 3.75" Outside</li><li>Replace your O-Ring with every 3rd filter change to prevent leaks</li><li>3pcs water filtration system O-Ring</li><li>Fits Housings: AP11S， AP11T， AP12S， AP12T， AP26T， AP51T， AP101S， AP101T， AP102S， AP102T， AP110， etc</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31gUOq7O0eL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41JUf4vHQkL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/414qVY9q5jL.jpg" noproxy>