4" X 8" Floor Register with Louvered Design - Heavy Duty Rigid Floor Air Supply with Damper & Lever - Outer Dimensions [ 5.5 X 9.5] - Light Grey Aluminum Adjustable Curved Blade 12" Diameter Is The Size

12" Diameter Is The Size For The Duct Opening Measurement Only

Weather and Pest Proof – These louvers are especially designed to prevent water from entering your home

+ Product Details Size – 20" x 20" is the size for the duct opening measurement only

+ Product Description Introducing our Sound-Rated Access Door

+ Product Details Size - 25"w X 32"h is the size for the duct opening measurement only

4" X 8" Floor Register with Louvered Design - Heavy Duty Rigid Floor Air Supply with Damper & Lever - Outer Dimensions [ 5.5 X 9.5] - Light Grey Aluminum Adjustable Curved Blade 12" Diameter Is The Size+ Product Details Size 4"w X 8"h or 8"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 5" X 9. 5" wider. High Quality Extra Heavy Duty to withstand constant walk on situations. Installation Location Floor. Design Rigid gauge built for durability and long life in mind, but still light and handy. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed.