Roof Vent Pipe Flashing Base Shape Round Base Material Plastic Cap/Collar Material Rubber Material Thickness Not Applicable For Roof Angle 45 Degrees For Number of Pipes 1 For Maximum Pipe Size 3 in For Minimum Pipe Size 3 in Base Height Not Applicable Base Width Not Applicable Base Diameter 3 in Seal Material Rubber Top Opening Open Application Pipe Vents Product Type No Calk UV Protected Yes For Roof Type Pitched Standards Approved for Type B Installation