12" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Grilles Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 27 3/4" x 1"

+ Product Details Size - 26"w X 10"h is the size for the duct opening measurement only

making repairs and maintenance a breeze

+ Product Details Size & Compatibility – The size of the side round ceiling box is 12" X 12" X 8" and it is compatible with duct 8"

The first number in a grille size represents the width

12" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Grilles Actual Filter Size – 27+ Product Details Size 12"w X 20"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 22. 5"h] Actual Filter Size 11 3 4"w x 19 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,