14" X 10" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Floor Grille + Product Details Size -

+ Product Details Size - 18"w X 24"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 12" or 12" x 6" duct opening (measured at the opening)

Actual Filter Size – 11 3/4"w x 15 3/4" x 1"

10"w X 3"h Is The Size For The Duct Opening Measurement Only

14" X 10" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Floor Grille + Product Details Size -+ Product Details Size 14"w X 10"h is the size for the duct opening measurement only, [Outer Dimensions: 16. 5"w X 12. 5"h] Actual Filter Size 13 3 4"w x 9 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,