<b>12""w X 8""h Steel Return Air Grilles - Sidewall and Cieling - HVAC DUCT COVER - White</b><br><b>12""w X 8""h Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 13.75"" Width X ""w X 9.75"" Height - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE</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>  Some of the best features aren't readily apparent, but you will appreciate the benefits over the period of time. <br>  This grille has a high standard of design, production and finish on all products. <br><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>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.</b><br><br><br>  <b>How To Measure A Grille</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 +1.75"".<br><br>  <b>Width vs Height</b><br> The first number in a grille size, represents the width, the second number represents the height. Example: If your hole is 20"" wide by 14"" tall, order a 20x14. If your hole is 14"" wide by 20"" tall, order a 14x20.