36"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE - Easy Air Flow - Linear Bar Grilles [Outer Dimensions: 37.875"W X 7.875"H] Color_R-8.0 Pink actual front end outer dimensions RG2230 HP w4h4 const modal document

actual front end outer dimensions are approximately 38 5/8" width X 12 5/8" height -

+ Product Details Size - 28"w X 4"h is the size for the duct opening measurement only

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actual front end outer dimensions are approximately 36 5/8" width X 38 5/8" height

+ Product Details Size - 6"w X 22"h X 2"d (for duct opening measurement only)

36"W X 6"H [Duct Opening] ALUMINUM RETURN GRILLE Easy Air Flow Linear Bar Grilles [Outer Dimensions: 37.875"W X 7.875"H] Color_R 8.0 Pink actual front end outer dimensions RG2230 HP w4h4 const modal document actual front end outer dimensions are approximately 38 5 8" width X 12 5 8" height + Product Details Size 28"w X 4"h is the size for the duct opening measurement only