24" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w25h25 then you'll need a 14-inch

then you'll need a 14-inch round vent

+ Product Details Size - 16"w X 6"h is the size for the duct opening measurement only

addEventListener('click'

+ Why HVAC Premium HVAC Premium has been providing superior quality service for many years

+ Product Details Size - 4"w X 12"h is the size for the duct opening measurement only

24" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w25h25 then you'll need a 14-inch+ Product Details Size 24"w X 12"h is the size for the duct opening measurement only, [Outer Dimensions: 26. 5"w X 14. 5"h] Actual Filter Size 23 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,