24" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Access Door + Product Details Size –

+ Product Details Size – Duct end cap is 22" X 10" | 26-gauge galvanized steel end cap

Tailored for Your Needs: Specifically suited for 24x24 lay-in diffusers

+ Product Details Size – 18"w X 36"h or 36" x 18" is the size for the duct opening measurement only

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

+ Product Details Size - 8"w X 22"h X 2"d (for duct opening measurement only)

24" X 18" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Access Door + Product Details Size –+ Product Details Size 24"w X 18"h is the size for the duct opening measurement only, [Outer Dimensions: 26. 5"w X 20. 5"h] Actual Filter Size 23 3 4"w x 17 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,