18X8 ND | Rectangular Damper | 18X8 ND MOTORIZED DAMPER | EWC Controls Joint_45° Ell - Clear ^^This 331 Number 3 Pneumatic

^^This 331 Number 3 Pneumatic Damper Actuator with ball joint connector is a rugged

1-1/4X1 REDUCING ECCENTRIC COUPLING SOCKET SCH40

4 PVC ADAPTER INSERTXSPIGOT SCH40

12X3 PVC REDUCING WYE SOCKET SCH40 100PSI G

Two-Valve Design

18X8 ND | Rectangular Damper | 18X8 ND MOTORIZED DAMPER | EWC Controls Joint_45° Ell - Clear ^^This 331 Number 3 PneumaticACTUATORS ARE INSTALLED ON THE 2ND DIMENSION, PHOTO IS GENERIC AND MAY NOT REPRESENT THE PART BEING ORDERED Rectangular Damper 18X8 ND MOTORIZED DAMPER The ND series of Ultra Zone dampers was designed with the installer and homeowners in mind. This damper is easy to install and easy to checkout. The LED display allows the installer to visually check the damper operation. With a sturdier frame, the damper installs in the duct much faster and easier and