Round Quadrant - Volume Damper | Round Damper Ring | 12" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 12" w20h20 + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 32" OR 32" x 30" duct opening (measured at the opening)

Airflow Control – Adjustable airflow lever allows precise control over the direction and volume of air

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actual front end outer dimensions are approximately 18 5/8" width X 12 5/8" height

+ Product Spec Sheet Corner Baseboard Grille Spec Sheet

Round Quadrant - Volume Damper | Round Damper Ring | 12" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 12" w20h20 + Product Details Perfect Fit+ Product Details Size & Compatibility The 12" round quadrant volume damper is compatible with duct 12" Superior Quality Made in the USA. Our manual adjuster damper quadrant is made of high quality galvanized sheet metal with crimped ends (snap lock design) for easy fitting and secure connection Applications This circular volume control damper plate is used to stops or regulates the flow of air inside a duct, chimney, vav box, air handler, or other