Culligan OR-233 (3 pack) Replacement ORings by Captain O-Ring [3-Inch Diameter]<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>3" Diameter OR-233 O-Rings</li><li>The OR-233 O-Ring has been branded under Ace Hardware， American Plumber， Ametek， Culligan， Pentek， US Filter Plymouth Products</li><li>Compatible with US-600， SY-2300， SY-2650， and others that use the OR-233 part</li><li>The OR-233 o-ring is used to seal the housing to the cap to prevent/fix leaks</li><li>Genuine Captain O-Ring Part (Manufactured and Warrantied by Captain O-Ring LLC)</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41NiiwEBdxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41zswFCyjPL.jpg" noproxy>