Side Outlet Ceiling Diffuser Box | 12" X 12" X 4" | Galvanized Steel Metal Box is Compatible with Duct 4" Round Damper Ring A: Black Grilles Always Look Outdoor Vent Covers BUFD10 FBA actual front end outer

A: Black Grilles Always Look Sharp And Never Show Dirt & Dust Marks

+ Product Details Size - 8"w X 10"h X 2"d (for duct opening measurement only)

Actual Filter Size – 9 3/4"w x 9 3/4" x 1"

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+ Product Details Size & Compatibility – The size of the side round ceiling box is 10" X 10" X 8" and it is compatible with duct 8"

Side Outlet Ceiling Diffuser Box 12" X 12" X 4" Galvanized Steel Metal Box is Compatible with Duct 4" Round Damper Ring A: Black Grilles Always Look Outdoor Vent Covers BUFD10 FBA actual front end outer A: Black Grilles Always Look Sharp And Never Show Dirt & Dust Marks + Product Details Size 8"w X 10"h X 2"d (for duct opening measurement only)