Quick view Compare Add to Cart Siemens Siemens GBB166.1U, OpenAir GBB Series Electric Damper Actuator, rotary, non-spring return, 221 lb-in (25 Nm), 24 Vac/dc, 0 to 10 Vdc control, 125 sec run time, dual auxiliary switches MSRP: Was: Now: $309.27 Quick view Compare Add to Cart
