40"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 41.875"W X 21.875"H] Powder Coated actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 16 5/8" height

Matching OBD dampers

provides a modern look and quiet operation due to its half-inch by half-inch cube design

Actual Filter Size – 29 3/4"w x 27 3/4" x 1"

12"w X 2"h Is The Size For The Duct Opening Measurement Only

40"W X 20"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 41.875"W X 21.875"H] Powder Coated actual front end outer dimensions+ Product Details Size 40"w X 20"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 41. 875" width X 21. 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