10"W X 4"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 11.875"W X 5.875"H] Powder Coated this guard is designed to

this guard is designed to provide maximum protection against tampering while maintaining a clean and professional appearance

pair it with our butterfly dampers

actual front end outer dimensions are approximately 16 5/8" width X 38 5/8" height

Experience enhanced indoor comfort with our 8" Radial Damper

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10"W X 4"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 11.875"W X 5.875"H] Powder Coated this guard is designed to+ Product Details Size 10"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 875" width X 5. 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