EPDM Black Round Base Pipe Flashing Master Flash #1, Pipe Range 1/4" to 2-1/2" (6.4mm to 63.5mm) Simple solution to flashing a penetration through a metal roof. Comes labeled with its corresponding diameter. Up to 45 degree pitch. Is marked with dimensions to allow for easy sizing to fit each individual application. Available in 10 various colors of EPDM or orange silicone for extreme temperatures. Resistance to ultraviolet rays, cracking & weathering.