COPPER ROOF JACKS
Stainless Steel Gravity Damper,
Brass Screening, 5 Common Duct Sizes, Custom Sizes Available
| A |
B |
C |
D |
E |
F |
G |
| 4" |
9 1/2" |
12" |
6" |
6" |
4 1/2" |
8 1/2" |
| 6" |
14" |
19" |
10" |
11" |
6" |
15" |
| 8" |
16" |
21" |
12" |
12" |
6 3/4" |
16 1/2" |
| 10" |
18" |
22" |
14" |
15" |
7" |
19" |
| 12" |
20" |
24" |
16" |
17" |
7 3/4" |
21 1/2" |
*** Measurements may vary 1/2" +/-
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