HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 7" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 7" white For 6" Round Duct Opening

For 6" Round Duct Opening - Spiral or Flex

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 18" or 18" x 12" duct opening (measured at the opening)

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

Constructed from durable

Extra Strong Frame – Our frames are the strongest on the market

HVAC Premium Round Quadrant - Volume Damper | Round Damper Ring | 7" Galvanized Steel Metal Round Duct Ring is Compatible with Duct 7" white For 6" Round Duct Opening+ 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