EPDM Black Pipe Flashings Square Base #9, Pipe Range 9-1/2" to 20-1/2"" (171mm to 520mm) Simple solution to flashing a penetration through a metal roof. Comes labeled with its corresponding diameter. Cut lines clearly marked to allow for easy installation for multiple pipe sizes. Available in 10 various colors of EPDM or orange silicone for extreme temperatures. Resistance to ultraviolet rays, cracking & weathering.