Roof Vent Pipe Boot Base Shape Square Base Material Aluminum Cap/Collar Material EPDM Material Thickness 16 ga For Roof Angle 45 Degrees For Number of Pipes 1 For Maximum Pipe Size 8 in For Minimum Pipe Size 4 in Base Height 12 1/4 in Base Width 12 1/4 in Seal Material EPDM Top Opening Open Application Pipe Vents Product Type Flashing UV Protected Yes For Roof Type Pitched Standards UPC Roof Pitch Range 12 12