36"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 13.75"H] w8h8 actual front end outer dimensions

actual front end outer dimensions are 15

Crafted from high-quality red oak wood

so you are not left with much waste

Our innovative adjustable design changes the game

This simple adjustment reduces HVAC strain

36"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 37.75"W X 13.75"H] w8h8 actual front end outer dimensions+ Product Details Size 36"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 37. 75" width X 13. 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