HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 7" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 7" Color_Anodized Aluminum Designed with practicality in mind

Designed with practicality in mind

+ Product Details Size – 16" x 20" or 20" x 16" is the size for the duct opening measurement only

listed size +2"

+ Product Details Size - 8"w X 30"h X 2"d (for duct opening measurement only)

Think of the diameter as a straight line from one end to the other

HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 7" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 7" Color_Anodized Aluminum Designed with practicality in mind+ Product Details Size & Compatibility The 7" round quadrant volume damper is compatible with duct 7" 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 air