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 5 in For Minimum Pipe Size 1/4 in Base Height 8 1/2 in Base Width 8 1/2 in Seal Material EPDM Top Opening Closed Application Pipe Vents Product Type Flashing UV Protected Yes For Roof Type Pitched Standards UPC Includes Clips