Hayward CX500CV 3/4-Inch Check Valve Replacement for Hayward Chemical Feeders<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Check valve replacement</li><li>Fits hayward chemical feeder models c250br， 500br</li><li>Weighs 5.1 pounds</li><li>Weighs 5.1 pounds</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31th5O6lSYL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/3154C6d1WlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/4148ilrwhBL.jpg" noproxy>