4" X 10" OR 10" X 4" Floor Register with Louvered Design - Heavy Duty Rigid Floor Air Supply with Damper & Lever - Outer Dimensions [ 5.5 X 11.5] - Light Grey 38 providing a perfect fit for

providing a perfect fit for most standard thermostats

etc Cutting

Ideal for Walls & Ceilings: Designed for seamless installation in standard 8" X 6" duct openings

Beyond installation

4" X 10" OR 10" X 4" Floor Register with Louvered Design - Heavy Duty Rigid Floor Air Supply with Damper & Lever - Outer Dimensions [ 5.5 X 11.5] - Light Grey 38 providing a perfect fit for+ Product Details Size 4"w X 10"h or 10"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 5" X 11. 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