24" X 20" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall or Ceiling w36h36 Designed for optimal airflow and 4 X 12 Is CRFG2028 Width_14in

Designed for optimal airflow and lasting durability

+ Product Details Size – 16" x 20" or 20" x 16" is the size for the duct opening measurement only

+ Product Description Upgrade your ventilation with our premium grilles and registers

+ Product Details Size - 10"w X 34"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 34 5/8" height

24" X 20" ADJUSTABLE AIR SUPPLY DIFFUSER HVAC Vent Duct Cover Sidewall or Ceiling w36h36 Designed for optimal airflow and 4 X 12 Is CRFG2028 Width_14in Designed for optimal airflow and lasting durability + Product Details Size – 16" x 20" or 20" x 16" is the size for the duct opening measurement only