Jackel Snap-In-Hub (4 Inch Diameter)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Water and vapor tight seal with no caulking</li><li>Fits 4 inch DWV SCH. 40/80 plastic pipe</li><li>Fits Basins with 18 inch - 6 inch Diameter</li><li>Quick and easy installation</li><li>Built-in O-Rings and Stainless Steel Clamp</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31kn0ZTCV5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31zlsAv7REL.jpg" noproxy>