The Universal Chimney Cap combines durability and function with its unique, inside anchoring system making it the ideal choice for windy conditions. This chimney cap can also be used on chimneys with or without an exposed flue tile. The Universal Cap is constructed with durable, 16 gauge, 3/4” expanded metal-diamond mesh and a 24 gauge, stamped steel lid. This cap has 5/8” California mesh screening. The Universal Chimney Cap fits both oval and rectangular flues. Galvanized black comes with a seven-year warranty.