20" X 20" Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 21.75"w X 21.75"h]

20" X 20" Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 21.75"w X 21.75"h]

• 20"w X 20"h Is The Size For The Duct Opening Measurement Only Actual Front End Frame Outer Dimensions Are 21.75"w X 21.75"h - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE
• High Quality Steel Construction, No Scuff Powder Coat Durable Finish, Smooth, Shiny, Scratch-Resistant, No Sharp Edges, 2 Recessed Screw Holes On Each Side with Screws Included, Screws Same Color As Vent Cover, EASY INSTALLATION
• LOUVERED Adjustable Register Grille for Sidewall or Ceiling Application, Easy Opening and Closing Back Dampers For Better Airflow Control, Quiet and Smooth Control Lever, Noise Free Components
• QUALITY PACKAGING - Carefully Shrink Wrapped With Cardboard Backing To Prevent Damage In Shipment - Hand Inspected for Quality
• EACH INDIVIDUAL FIN IS ADJUSTABLE FOR MAX AIRFLOW CONTROL – Adjust The Fins To Open or Close From the Front - Easy Unrestricted Air Flow Deflection For Your HVAC System