4" x 12" Or 12" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 13.75] Compatible with Duct 5" these magnetic vent covers are

these magnetic vent covers are a game-changer for any space

actual front end outer dimensions are approximately 26 5/8" width X 18 5/8" height

+ Product Details Size & Compatibilty - The 8" to 6" round metal pipe reducer & increaser 30 gauge is compatible with duct 8" to 6"

and the included installation screws make setup simple and efficient

+ Product Details Size – The size of 10" straight saddle stick on take-off is 10" and it is compatible with duct 10"

4" x 12" Or 12" X 4" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 13.75] Compatible with Duct 5" these magnetic vent covers are+ Product Details Size 4" x 12" or 12" x 4" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 5. 75" width X 13. 75" height. High Quality High grade steel construction meant for high foot traffic areas. Installation Location Floor. Design Easy drop in installation. Powder Coat Finish Smooth, shiny, scratch resistant, with no sharp edges. Looks like it was just waxed. Quality Packaging Carefully