In-Line Sleeve Dampers

    When additional air balancing is required, GSI’s in-line sleeve damper has been specifically engineered to work with our GreenSeam Plus pipe. The in-line damper provides the best way to keep the system factory sealed and add supplemental system air balancing. Yellow Union Label manufacturing is standard on these products.

  • 6" In-Line Sleeve Damper

    6″ In-Line Sleeve Damper