12" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Powder-Coated + Product Details Size -

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

actual front end outer dimensions are approximately 20 5/8" width X 26 5/8" height

+ Product Details Size - 30"w X 25"h is the size for the duct opening measurement only

[Outer Dimensions: 22

12" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Powder-Coated + Product Details Size -+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 14. 5"h] Actual Filter Size 11 3 4"w x 11 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,