Pentair R172288 Corrosion Resistant Check Valve Replacement Pool and Spa Automatic Feeder<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Corrosion resistant check valve replacement</li><li>Fits Pentair pool and spa in-line automatic feeder models 300， 302， 320 and 322</li><li>Also fits Pentair pool and spa high capacity automatic feeder models HC-3315， HC-3330， HC-3340</li><li>Comes with 1-1/2-inch by 2-inch</li><li>Measures 5-inch length by 3-inch height by 5-inch width</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31LXNuqjpbL.jpg" noproxy>