This 8" x 13" HomeSaver Pro Black Galvanized Chimney Cap is designed to fit a variety of flue tile shapes, including square, round, rectangular, and oval. The modified 18-gauge galvanized steel base ensures a secure fit, while the 24-gauge galvanized steel lid features smooth, rolled edges for a polished look. The 8-inch high, 5/8-inch mesh screen provides protection against harsh weather conditions and animal invasion. With a lid diameter of 14 5/8" x 19 1/2", this chimney cap fits outside tile dimensions ranging from 6 1/2" x 11 1/2" to 9" x 14", making it a versatile and reliable choice for your home.