14"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 25.875"H] 18in diameter represents the height

represents the height

+ Product Details Size - 32"w X 36"h X 2"d (for duct opening measurement only)

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 10" duct openings

+ Product Details Size – 20" x 28" or 28" x 20" is the size for the duct opening measurement only

Actual Filter Size – 29 3/4"w x 5 3/4" x 1"

14"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 25.875"H] 18in diameter represents the height+ Product Details Size 14"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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