MASTER FLASH Pipe Boot,Retrofit,1/2" to 4" Pipes

8 3/16 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 14 Degrees , For Number of Pipes 1, For Maximum Pipe Size 4 in, For Minimum Pipe Size 7/8 in, Base Height 8 1/4 in, Base Width 8 1/4 in, Base Diameter Not Applicable, Seal Material Silicone, Top Opening Open, Application Pipe Vents, Product Type Standard Retrofit Master Flash, UV Protected Yes, For Roof Type Pitched, Standards UPC