<b>3" X 10" Floor Register with Louvered Design - Fixed Blades Return Supply Air Grill - with Damper & Lever - White</b><br><b>3"w X 10"h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 4.5" Width X 11.5" Height - SEE BELOW IN DESCRIPTION How To Measure A Grille<br></b><br><br><br>You may think of grilles and registers as a generic component of the ventilation system in your house. But they are also the most visible representation of you air system. <br> These grilles and registers give you an extra measure of quality that are visible to your family members and house guests. <br> <br> <b>High Standard</b><br> <b>Every part is hand inspected for quality before it is packaged, no exceptions.</b> <br> <b>No Sharp Surface Edges.</b> Just run your finger along the edge of the top plate and you will find a smooth finished surface. <br> <b>Rigid Gauge Steel.</b> Rigid gauge built for durability and long life in mind, but still light and handy.<br> <b>Powder-Coat Finish</b> - Smooth, Shiny, Scratch-Resistant, Beautiful. Looks Like It Was Just Waxed<br> <b>Quality Packaging</b> - Carefully Shrink Wrapped With Cardboard Backing To Prevent Damage In Shipment<br> <b>Easy Unrestricted Air Flow For Your HVAC System</b><br><br><br> How To Measure A Grille<br></b><br> <b>Overall Size:</b><br> Measure the size of the air duct/drywall opening. Do not measure the overall size of the register itself, only measure the "hole" in the wall/duct. Every grille has a front end frame, that will overlap at wall joint.<br> Total outer size of this grille is; listed size +1.5".<br><br>