Hayward CX900B Filter Head Replacement with Directional Vent Valve for Hayward Star-Clear Cartridge Filters<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Filter head replacement with directional vent valve</li><li>Fits hayward star-clear cartridge filters models c751， c900</li><li>Weighs 4.7 pounds</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41K0neS4jCL.jpg" noproxy>