4"W X 32"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 5.75"W X 33.75"H] Adjustable Return + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 24" x 24" is the size for the duct opening measurement only

+ Product Details Size - 10"w X 14"h is the size for the duct opening measurement only

Carefully packaged for protection during shipment

1/2" - 3119 PSI

+ Product Details Size - 34"w X 30"h is the size for the duct opening measurement only

4"W X 32"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 5.75"W X 33.75"H] Adjustable Return + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 24" x 24" is the size for the duct opening measurement only + Product Details Size 10"w X 14"h is the size for the duct opening measurement only