25"W X 10"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 26.75"W X 11.75"H] w24h24 + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 24"w X 8"h is the size for the duct opening measurement only

[Outer Dimensions: 16

+ Product Details Size - 40"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 14"w X 20"h is the size for the duct opening measurement only

Actual Filter Size – 23 3/4"w x 11 3/4" x 1"

25"W X 10"H [Duct Opening] Steel Air Vent Return Grille HVAC VENT DUCT COVER DIFFUSER [Outer Dimensions: 26.75"W X 11.75"H] w24h24 + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 24"w X 8"h is the size for the duct opening measurement only [Outer Dimensions: 16