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Diagram of item goes here.

Size Diameter A Diameter B Length C HEIGHT
5" 5 1/4" 9" 11" 11"
6" 6 1/4" 9" 12" 11"
7" 7 1/4" 11" 13" 11"
8" 8 1/4" 11" 14 1/4" 11"

Ceiling Pitch
Single Wall Double Wall Use
0/12-4/12 0/12-6/12 11" Support Box
5/12-9/12 7/12-13/12 24" Support Box
10/12-14/12 14/12-20/12 36" Support Box