The standard Universal cap is designed to accommodate approximately 90% to 95% of the flues in your area. However, for the remaining 5% to 10% of chimneys, we offer alternative Universal-type Chimney caps available in both 18″x18″ and 22″x22″ sizes.
Thanks to the 7” full inches of adjustment provided by a Universal chimney cap, the 18”x18” model covers dimensions down to 11”x11”, while the 22”x22” cap covers down to 15”x15”.
