12"W X 36"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 13.875"W X 37.875"H] Adjustable Return + Product Details Size –

+ Product Details Size – 34"w X 28"h is the size for the duct opening measurement only

+ Product Details Size - 6" Diameter is the size for the duct opening measurement only

+ Product Details Size - 16"w X 4"h is the size for the duct opening measurement only

Our filter grille latch is easy to use on your fingers and requires no screwdriver to open

12"W X 36"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 13.875"W X 37.875"H] Adjustable Return + Product Details Size –+ Product Details Size 12"w X 36"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 875" width X 37. 875" height. High Quality High quality aluminum with counter sunk screw holes (screws included) and no sharp edges. Design Unrestricted airflow For Your HVAC system noise free components no vibrating louvers etc. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was