HVAC Premium 4" X 12" or 12" X 4" Heavy Duty Walkable Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 5.75 X 13.75]

4" X 12" Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 5.75 Width X 13.75 Height - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE High Standard Every part is hand inspected for quality before it is packaged, no exceptions. No Sharp Surface Edges - Just run your finger along the edge of the top plate and you will find a smooth finished surface. Quality Packaging - Carefully Shrink Wrapped With Cardboard Backing To Prevent Damage In Shipment Easy Unrestricted Air Flow For Your HVAC System How To Measure A Grille Overall Size: 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. Total outer size of this grille is; listed size + 1.75" at width and + 1.75" at height. Width vs Height 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.