17"W X 10"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 18.875"W X 11.875"H] Compatible With Duct 6in With precise measurements and easy Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

With precise measurements and easy installation

These are airflow control components made to connect to supply grilles of the drop ceiling

adds a touch of sophistication to any room

+ Product Details Size - 4"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 18" x 36" or 36" x 18" is the size for the duct opening measurement only

17"W X 10"H [Duct Opening] ALUMINUM RETURN GRILLE EASY AIR FLOW LINEAR BAR GRILLES [OUTER DIMENSIONS: 18.875"W X 11.875"H] Compatible With Duct 6in With precise measurements and easy Compatible With Duct 7in Applications This sheet metal DDAG A 1212 With precise measurements and easy installation These are airflow control components made to connect to supply grilles of the drop ceiling