EWC Controls ND20X10 Ultra-Zone motorized rectangular zone damper, 20 in. x 10 in., 24 VAC. Heavy-duty extruded aluminum with overlapping parallel-blade design, nylon bushings, LED operation indicator, UL-listed power-open/power-close actuator; 97% leak-proof; rated to 1.5 in.wc and 1500 FPM.

EWC Controls ND20X10 Ultra-Zone motorized rectangular zone damper, 20 in. x 10 in., 24 VAC. Heavy-duty extruded aluminum with overlapping parallel-blade design, nylon bushings, LED operation indicator, UL-listed power-open/power-close actuator; 97% leak-proof; rated to 1.5 in.wc and 1500 FPM.