12" X 4" Mobile Home RV Floor Register Vent Grille with Back Dampers - Fixed Blades - 2 way Deflection - Brown w20h20 Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 14" duct openings

These are specially sized to fit into all drop cielings

+ Product Details Size - 12"w X 10"h Is The Size For The Duct Opening Measurement Only

6" x 6" - opening (vent hole - Neck Size) dimension - actual size is approx 2" wider

12" X 4" Mobile Home RV Floor Register Vent Grille with Back Dampers - Fixed Blades - 2 way Deflection - Brown w20h20 Ideal for Walls & Ceilings:+ Product Details Size 12"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 5" X 5. 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. Quality