IPS 81823 3-Inch - 6-Inch EPDM Roof Flashing Each Flashing is Adjustable to Fit Several Pipe Diameters - We Offer Eight Models to Fit 1/4" thru 13" Pipe Sizes Made of Long Life, Flexible, Weatherproof EPDM Rubber Flexible, Corrosion Resistant Aluminum Base Ring Conforms to Any Roof Panel Configuration One Piece Construction for Easy Installation UV and Ozone Resistant EPDM Rubber Won't Crack