Woodstock D4262 4-Inch Connector<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Flange diameter is 5-5/8-inch</li><li>Simply cut a 4-inch diameter hole and mount the connector</li><li>Pre-bored mounting holes</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41HHvVJS4yL.jpg" noproxy>