The Forever Cap CCSS828 8 x 28-Inch Stainless Steel Double Flue Chimney Cap Designed to fit over two 8 in. x 13 in. masonry clay flue tiles. Sizes ranging from: 6-1/2 in. x 25 in. to 9 in. x 28 in. Hood size is 16" x 35" Made in the USA