Pentair R172256 Nipple Replacement Rainbow Automatic Chlorine/Bromine Pool and Spa Feeder<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Nipple replacement</li><li>Fits Pentair Rainbow automatic chlorine/bromine pool and spa feeder models 320， 322， 300-29X</li><li>Measures 1/2-inch by short MPT</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41pY0RwbYKL.jpg" noproxy>