18" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Compatible With Duct 12in easy installation

easy installation

+ Product Details Size & Compatibility – The 5" Galvanized Sheet Metal 90 Degree Oval Vertical Angle Elbow is compatible with Duct 5"

providing over 60 ways to store and organize your essential tools

10"w X 8"h Is The Size For The Duct Opening Measurement Only

18" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Compatible With Duct 12in easy installation+ Product Details Size 18"w X 12"h is the size for the duct opening measurement only, [Outer Dimensions: 20. 5"w X 14. 5"h] Actual Filter Size 17 3 4"w x 11 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,