*Removable lid size is 20" x 42" and is made from strong 24 gauge galvanized steel
*8" high screen has 3/4 mesh and measures 15" X 37" and is made with 18 guage galvanized steel
*Base flanges are designed to bend and can fit different chimney top angles
*Includes masonry screws and adhesive for easy installation
*Quality construction and beautiful black satin paint by the HY-C company
*Made in the USA and carries a 7 year workmanship warranty