18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Fixed Blades with Damper + Product Description Introducing our

+ Product Description Introducing our 8" x 6" or 6" x 8" Floor Grille - a reliable and durable air grill designed for exceptional performance and built to last

The integral multi-shutter damper with a convenient handle operator ensures that you can easily adjust the air volume

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 12" OR 12" x 36" duct opening (measured at the opening)

+ Product Details Size - 26"w X 30"h is the size for the duct opening measurement only

18" X 24" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES Fixed Blades with Damper + Product Description Introducing our+ Product Details Size 18"w X 24"h is the size for the duct opening measurement only, [Outer Dimensions: 20. 5"w X 26. 5"h] Actual Filter Size 17 3 4"w x 23 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,