Roof Vent Pipe Flashing Base Shape Rectangular Base Material Steel Cap/Collar Material Rubber Material Thickness 28 ga For Roof Angle 40 Degrees For Number of Pipes 1 For Maximum Pipe Size 3 in For Minimum Pipe Size 3 in Base Height 14 1/2 in Base Width 11 in Base Diameter Not Applicable Seal Material Rubber Top Opening Open Application Pipe Vents Product Type No Calk UV Protected Yes For Roof Type Pitched Standards IAPMO (UPC) NES 653