20"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 21.875"W X 25.875"H] Aluminum Bar actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 28 5/8" width X 24 5/8" height

If you are looking to enhance your project with a top-of-the-line unit

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

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Actual Filter Size – 24 3/4"w x 35 3/4" x 1"

20"W X 24"H [Duct Opening] ALUMINUM RETURN GRILLE Easy Air Flow Linear Bar Grilles [Outer Dimensions: 21.875"W X 25.875"H] Aluminum Bar actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 28 5 8" width X 24 5 8" height If you are looking to enhance your project with a top of the line unit