Roof Vent Pipe Boot Base Shape Square Base Material Aluminum Cap/Collar Material EPDM Material Thickness 0.3 in For Roof Angle 0 Degrees For Number of Pipes 1 For Maximum Pipe Size 11 3/4 in For Minimum Pipe Size 11 3/4 in Base Height 24 in Base Width 24 in Base Diameter Not Applicable Top Opening Open Application Pipe Vents Product Type Roof Vent Sealing Adapter UV Protected Yes For Roof Type Pitched Maximum Ambient Temperature 275 Degrees F Minimum Temperature -67 Degrees F