The Forever Cap CCSC1717 17 x 17-Inch Multi Flue Stainless Steel Crown Mount Chimney Cap, 1-Pack
Price 118.14 - 151.62 USD
Finish size is 20" x 20" and will a fit chimney crown of that size or larger * Screen to Screen Size is 17" x 17" * Hood size is 24"x 24" * Made in the USA * Lifetime Warranty