4"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 19.75"H] 18in diameter Versatility and Durability: The red

Versatility and Durability: The red oak wood not only adds a touch of warmth and softness to your room but can also be sanded and refinished according to your specific application needs

that will overlap at wall joint

Copper coil line set fits most ductless mini split air conditioners

You may think of grilles and registers as a generic component of the ventilation system in your house

+ Product Details Size - 8"w X 16"h is the size for the duct opening measurement only

4"W X 18"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 19.75"H] 18in diameter Versatility and Durability: The red+ Product Details Size 4"w X 18"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 19. 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 waxed.