Lindemann 150733 Hy-C 13 Inch x 13 Inch Copper Draft King Chimney Cap
This 13in X 13in Copper HY-C Chimney Cap features 24-gauge copper lid construction with scalloped corners and roll formed edges. The copper .75in mesh is 18-gauge. This cap features a lifetime warranty. Fits flue sizes from 11.5in X 11.5in up to 13.5in X 13.5in.