24" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Insulated Line Set if your hole is 20"

if your hole is 20" wide by 14" tall

actual front end outer dimensions are 13

5" - SEE BELOW IN DESCRIPTION How To Measure A Grille

+ Product Details Size – 18" Wooden Corner Baseboard Grille

Design – Removable face for cleaning and access to damper - wooden damper for airflow shutoff control

24" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Insulated Line Set if your hole is 20"+ Product Details Size 24"w X 14"h is the size for the duct opening measurement only, [Outer Dimensions: 26. 5"w X 16. 5"h] Actual Filter Size 23 3 4"w x 13 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,