Effective Chimney Protection - Safeguard the top of your chimney from birds, debris, rain, snow, certain downward drafts, and potential fire hazards with the HY-GUARD Galvanized Steel Chimney Cover. Simple Bolt-On Installation - Our chimney caps are uniquely designed and engineered to easily bolt onto existing clay or masonry flue tiles, ensuring a secure and hassle-free installation process. Customizable Fit - Offering a versatile fit, this chimney flue cover plate can easily accommodate outside chimney flue tiles with dimensions ranging from 16 x 16 to 18 x 18". Durable - This house chimney cap is constructed with 24-gauge galvanized steel hood, 18-gauge expanded galvanized steel mesh, and 14-gauge galvanized steel base to ensure long-lasting durability. Proudly Made in the USA - Our fireplace chimney caps are manufactured in the United States, ensuring high quality standards and reflecting a commitment to excellent craftsmanship and reliability.