Roof Vent Pipe Boot Base Shape Rectangular Base Material Thermoplastic Cap/Collar Material Rubber Material Thickness Not Applicable For Roof Angle 60 Degrees For Number of Pipes 1 For Maximum Pipe Size 3 in For Minimum Pipe Size 1 1/4 in Base Height 19 in Base Width 11 in Base Diameter Not Applicable Seal Material Rubber Top Opening Open Application Pipe Vents Product Type All-Flash No Calk UV Protected Yes For Roof Type Pitched Standards IAPMO (UPC) NES 653