18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Custom Louvers textContent = '-'

textContent = '-'

actual front end outer dimensions are approximately 16 5/8" width X 10 5/8" height -

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

[Outer Dimensions: 16

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

18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Custom Louvers textContent = '-'+ Product Details Size 18"w X 24"h is the size for the duct opening measurement only, [Outer Dimensions: 20. 5"w X 26. 5"h] Actual Filter Size 17 3 4"w x 23 3 4" x 1" High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Location Sidewall and ceiling. Design Heavier gauge than needed,