Side Outlet Ceiling Diffuser Box | 10" X 10" X 10" | Galvanized Steel Metal Box is Compatible with Duct 10" Compatible With Duct 4in + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 18"w X 22"h is the size for the duct opening measurement only

+ Product Details Size - 12"w X 12"h Is The Size For The Duct Opening Only

Each grille is securely shrink-wrapped with a cardboard backing to prevent damage during shipment

+ Product Details Size - 18"w X 30"h X 2"d (for duct opening measurement only)

it's a trusted choice for HVAC applications

Side Outlet Ceiling Diffuser Box 10" X 10" X 10" Galvanized Steel Metal Box is Compatible with Duct 10" Compatible With Duct 4in + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 18"w X 22"h is the size for the duct opening measurement only + Product Details Size 12"w X 12"h Is The Size For The Duct Opening Only