20 URD | 20 Inch Round Motorized Damper | EWC Controls Section_Hydraulic Accessories 14X4 PVC REDUCING DOUBLE WYE

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20 URD | 20 Inch Round Motorized Damper | EWC Controls Section_Hydraulic Accessories 14X4 PVC REDUCING DOUBLE WYE20 Inch Round Motorized Damper Description The URD series of round motorized dampers are a double layered blade design with an integrated Poron sealing gasket. The superior design insures long life and zero maintenance. URD dampers are easy to install, easy to wire up, and come with a 5 year warranty. The URD damper is constructed of heavy 24 gauge galvanized steel with factory rolled stiffening beads. The nylon bearings and ThermoTuff drive shafts