16" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w32h32 + Product Details Size -

+ Product Details Size - 20"w X 12"h is the size for the duct opening measurement only

Actual Filter Size – 33 3/4"w x 23 3/4" x 1"

+ Product Details Size & Compatibility – The 8" galvanized steel round side take-off is compatible with duct 8"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 28" duct opening (measured at the opening)

16" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w32h32 + Product Details Size -+ Product Details Size 16"w X 30"h is the size for the duct opening measurement only, [Outer Dimensions: 18. 5"w X 32. 5"h] Actual Filter Size 15 3 4"w x 29 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,