18"W X 16"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 19.75"W X 17.75"H] Powder-Coated + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

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

This grille has a high standard of design

+ Product Details Size - 30"w X 6"h is the size for the duct opening measurement only

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+ Product Details Size – 10" X 2" is the size for the duct opening (floor/vent hole) measurement only

18"W X 16"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 19.75"W X 17.75"H] Powder Coated + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 24" x 24" is the size for the duct opening measurement only This grille has a high standard of design