36"W X 24H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 37.875"W X 25.875"H] ceiling actual front end outer dimensions

actual front end outer dimensions are approximately 14 5/8" width X 20 5/8" height

Actual Filter Size – 25 3/4"w x 21 3/4" x 1"

+ Product Details Size – 8" X 4" is the opening (vent hole) dimension - actual size is approx

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 24" or 24" x 8" duct opening (measured at the opening)

+ Product Details Size - 20"w X 14"h X 2"d (for duct opening measurement only)

36"W X 24H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 37.875"W X 25.875"H] ceiling actual front end outer dimensions+ Product Details Size 36"w X 24"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 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