28"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 29.875"W X 17.875"H] 18in diameter + Product Details Size –

+ Product Details Size – 18"w X 24"h is the size for the duct opening measurement only

Just run your finger along the edge of the top plate and you’ll find a smooth finished surface

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

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Its heavier gauge construction guarantees durability and longevity

28"W X 16"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 29.875"W X 17.875"H] 18in diameter + Product Details Size –+ Product Details Size 28"w X 16"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 875" width X 17. 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