MASTER FLASH Pipe Boot,1& to 8-1/2& Square Pipes

16 3/4 In.H-W Alum Roof Vent Pipe Boot; Base Shape Square; Base Material Aluminum; Cap/Collar Material EPDM; Material Thickness 0.3 in; For Roof Angle 18 Degrees ; 45 Degrees ; For Number of Pipes 1; For Maximum Pipe Size 10 in; For Minimum Pipe Size 7/8 in; Base Height 16 3/4 in; Base Width 16 3/4 in; Base Diameter Not Applicable; Seal Material Silicone; Top Opening Closed; Application Pipe Vents; Product Type Multi-Flash Square Vent; UV Protected Yes; For Roof Type Pitched; Standards UPC