Broan Broan 6" Automatic Make-Up Air Damper with LinkLogic

6" Automatic Make-Up Air Damper with LinkLogicBroan's automatic make-up air dampers provide synchronized operation for kitchen, bath, and whole house ventilation systems, providing unprecedented control of make-up air for your exhaust devices. With simple installation that requires no special wiring, this intelligently designed system ensures that each of your ventilation devices is performing at maximum efficiency. Both highly effective, and affordable, the Broan automatic make-up air dampers provide th...