24"W X 22"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 23.75"H] Grilles The design eliminates noise and

The design eliminates noise and prevents louvers from vibrating

Insulation – A thick blanket of fiberglass insulation provides you with an R-Value of 8

actual front end outer dimensions are 13

+ Product Details Size – 36"w X 8"h is the size for the duct opening measurement only

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24"W X 22"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 23.75"H] Grilles The design eliminates noise and+ Product Details Size 24"w X 22"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" width X 23. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just