20" DIAMETER WIRED MODULATING DAMPER WITH ACTUATOR, 24 VAC, 80 IN-OZ OF TORQUE, 2.4VA OPERATING, 1VA HOLDING, 5/16" DIAMETER DIE CAST SHAFT, NO INTERNAL GASKET TO RESTRICT AIRFLOW, LED INDICATORS FOR FULLY OPEN, DIMENSIONS: 22"H X 20"W X 20"D, IN MFG BOX, MADE IN USA.**(ALT # E50500R80CT20)**