36" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 16" Round Duct Pipe + Product Details Size -

+ Product Details Size - 14"w X 4"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 6" or 6" x 14" duct opening (measured at the opening)

Actual dimensions: 21

Practical Design – Smooth

+ Product Details Size - 48"w X 24"h is the size for the duct opening measurement only

36" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 16" Round Duct Pipe + Product Details Size -+ Product Details Size 36"w X 16"h is the size for the duct opening measurement only, [Outer Dimensions: 38. 5"w X 18. 5"h] Actual Filter Size 35 3 4"w x 15 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,