Fits 20x4 Duct Opening Steel Adjustable Air Supply Grille by | Register Vent Cover Grill for Sidewall and Ceiling | White | Outer Dimensions: 21.75" X 5.75"

AQWAL

• HOW TO MEASURE - Always measure the duct opening to determine which size you should order. Duct Opening Size = Listed Size. If the hole on the wall or ceiling is 20" W x 4" H please order the 20x4 size option. The outer dimensions of the grille are 1.75" wider.
• CUSTOMIZABLE AIRFLOW - Our adjustable air supply grille features a design that allows you to customize the airflow in your space. Whether you need a gentle or a powerful gust, this vent cover lets you control the airflow to suit your level with back dampers. With vertically adjustable blades that can be deflected individually, you have the flexibility to adjust the airflow to the right and left, making it a versatile wall cover.
• HIGH-QUALITY MATERIALS - Made of high quality steel with durable powder paint coated, the adjustable ceiling register is built to last and withstand daily use. The steel is stamped so there is no sharp edges. It is noise free product.
• VERSATILE APPLICATION - adjustable register vent cover used for sidewall or ceiling openings. Using our adjustable HVAC vent cover within your ventilation system will improve your home circulation.