14"W X 14"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 15.875"H] steel + Product Details Size -

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

High Quality Copper Coil Meets/Beats ASTM B280 Standard for Air Conditioning and Refrigeration (Made From C12200 - 99

+ Product Details Size - 36"w X 36"h is the size for the duct opening measurement only

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14"W X 14"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 15.875"H] steel + Product Details Size -+ Product Details Size 14"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 875" width X 15. 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