24" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w16h16 + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size – 18" Wooden Corner Baseboard Grille

+ Product Details Size – 16"w X 12"h is the size for the duct opening measurement only

+ Product Details Size - 26"w X 32"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 18 5/8" width X 12 5/8" height

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24" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER EASY AIR FLOW LINEAR BAR GRILLES w16h16 + Product Details Size – Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size – 18" Wooden Corner Baseboard Grille + Product Details Size – 16"w X 12"h is the size for the duct opening measurement only