3 in, For Roof Angle 36 Degrees , For Number of Pipes 1, For Maximum Pipe Size 1 7/8 in, For Minimum Pipe Size 1/8 in, Base Height Not Applicable, Base Width Not Applicable, Base Diameter 4 3/4 in, Seal Material Silicone, Top Opening Closed, Application Pipe Vents, Product Type Universal Master Flash, UV Protected Yes, For Roof Type Pitched, Standards UPC.