Measure the size of the air duct/drywall opening.DO NOT MEASURE the overall size of the register itselfOnly MEASURE the "HOLE" in the wall/duct. Every grille has a front end frame, that will overlap at wall joint.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. Airflow Controlling Back Dampers With Easy Opening and Closing Back Dampers, you can fully control how much or how little airflow you want. Front Lever Control Easily modulate your airflow with the very accessible front lever that fully opens or closes the back dampers. Screws Included High Quality Solid Stamped Steel with Counter-Sunk Screw Holes (Screws Included) and No Sharp Edges For Easy Installation. Just Screw into your wall and that's it! Material Steel Installation Method Sidewall, Ceiling Included Components Screws, Back Dampers Manufacturer HVAC Premium FAST Shipping & Handling With strategically placed warehouses in every state and in every major metropolis area, we can get you your product, faster and safer. Less traveling means less chances to break or bend.
