MASTER FLASH Pipe Boot,1/4" to 3" Pipes

19 1/4 In.H 16 In.W Alum Roof Vent Pipe Boot, Base Shape Rectangular, Base Material Aluminum, Cap/Collar Material EPDM, Material Thickness 0.3 in, For Roof Angle 20 Degrees , 45 Degrees , For Number of Pipes 1, For Maximum Pipe Size 3 1/4 in, For Minimum Pipe Size 7/8 in, Base Height 19 1/4 in, Base Width 16 in, Base Diameter Not Applicable, Seal Material Silicone, Top Opening Closed, Application Pipe Vents, Product Type Residential Master Flash, UV Protected Yes, For Roof Type Pitched