30" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES White The design eliminates noise and Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

The design eliminates noise and prevents louvers from vibrating

actual front end outer dimensions are approximately 26 5/8" width X 16 5/8" height

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

+ Product Details Size - 36"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 36"w X 22"h is the size for the duct opening measurement only

30" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER EASY AIR FLOW LINEAR BAR GRILLES White The design eliminates noise and Compatible With Duct 7in Applications This sheet metal DDAG A 1212 The design eliminates noise and prevents louvers from vibrating actual front end outer dimensions are approximately 26 5 8" width X 16 5 8" height