2 Pack O-Ring Replacement For Pentair Rainbow 300/320 Chlorinator Lid O-ring R172009 O-283<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>2 Pack Southeastern Brand O-rings for Rainbow 300/320 Chlorinator</li><li>Replacement For R172009</li><li>Chlorinator Lid O-ring Replacement</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31qourc-AkL.jpg" noproxy>