About Master Flow™ Dampers

Designed for use with round pipe, Master Flow™ Dampers include spring-loaded hardware for easy installation on new and existing round pipe. Available in 3 sizes to help balance and adjust air flow based on your needs.

  Weight Diameters


1.2 lb. (.54 kg) 4" (102 mm)
D-6 2 lb. (.91 kg) 6" (152 mm)
 D-8 2 lb. (.91 kg)   8" (203 mm)

Features & Benefits

Product Documentation