20"W X 40"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 21.875"W X 41.875"H] w14h14 With plain ends

With plain ends

making it an ideal choice for both residential and commercial settings

One model suits both T-Bar and Drywall installations

Actual Filter Size – 35 3/4"w x 5 3/4" x 1"

+ Product Details Size - 4"w X 36"h is the size for the duct opening measurement only

20"W X 40"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 21.875"W X 41.875"H] w14h14 With plain ends+ Product Details Size 20"w X 40"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 875" width X 41. 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