Product Description
. . . . . Siemens GND121.1U GND 2-Position, 53 lb-in, Spring Return Fire and Smoke Control Damper Actuator (24 Vac). Siemens. Siemens. GND121.1U.
. . . . . Siemens GND121.1U GND 2-Position, 53 lb-in, Spring Return Fire and Smoke Control Damper Actuator (24 Vac). Siemens. Siemens. GND121.1U.