10"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 11.875"W X 25.875"H] Fixed Blades with Damper + Product Details Size –

+ Product Details Size – 4"w X 12"h is the size for the duct opening measurement only

Seamless Installation: Designed to fit seamlessly into a 24 by 24 inch opening

actual front end outer dimensions are approximately 24 5/8" width X 18 5/8" height

R Value Rating of Insulation - R3

10"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 11.875"W X 25.875"H] Fixed Blades with Damper + Product Details Size –+ Product Details Size 10"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 875" width X 25. 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