HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 7" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 7" Height_22in Complies with industry standards of

Complies with industry standards of USA: ASTM D-882

High Quality – Strong and sturdy aluminum built to last

75"H – fits a 10" x 8" duct opening

purposes with tumbler lock & key (2 keys included) and can be installed on drywall

} + Product Details Size & Compatibility - The size of a boot register end is 6" X 4" X 5" galvanized floor boot end center 26-gauge

HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 7" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 7" Height_22in Complies with industry standards of+ 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