10" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 25 Feet Long while the included safety wire

while the included safety wire provides added security to prevent the door from falling off

+ Product Details Size - 32"w X 24"h is the size for the duct opening measurement only

This 20" X 10" end cap is constructed with 26-gauge galvanized steel

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

10" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 25 Feet Long while the included safety wire+ Product Details Size 10"w X 6"h is the size for the duct opening measurement only, [Outer Dimensions: 12. 5"w X 8. 5"h] Actual Filter Size 9 3 4"w x 5 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,