Chimney Cap Size Fits Outside Flue Width of Fits Outside Flue Length of Screen Mesh Height
9" x 9" 7 1/2" - 9 1/2" 7 1/2" - 9 1/2" 8"
9" x 13" 7 1/2" - 9 1/2" 11 1/2" - 13 1/2" 8"
8" x 17" Oval 7 1/2" - 9 1/4" 16 1/2" - 18 1/4" 8"
13" x 13" 11 1/2" - 13 1/2" 11 1/2" - 13 1/2" 8"
10" x 17" Oval 9 1/2" - 11" 16 1/2" - 18 1/4" 8"
13" x 17" Oval 11 1/2" - 13 1/4" 16 1/2" - 18 1/4" 8"
13" x 21" Oval 12" - 13 1/2" 20" - 22" 8"
17" x 21" Oval 16" - 17 1/2" 20" - 22" 8"
8" x 20" Oval 6 1/2" - 8 1/8" 17" - 19" 8"
9" x 21" Oval 7 1/8" - 9 1/2" 19 1/8" - 21 1/8" 8"