Slides over pipe for pitch to 40 degree. Non-fading sealing collar. 18" x 18" bases for code required areas. Rated 180 degrees Fahrenheit continuous heat. Approved for Type B installations. UPC, SBCCI and BOCA Listed. Galvanized Base - Made from 24 gauge deep drawing steel extra high no seams. This 1 1/4-1 1/2 Galvanized Roof Flashing is one of many top quality items in our Pipe Flashings department.