Broan NuTone MD6T 6" Automatic Make-Up Air Damper - Direct Wired</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Broan MD6T 6 In. Automatic Make-Up Air Damper; Dampers can be "ganged" for high volume applications; For use with Broan Range Hoods Broan Elite 60000， Broan Elite 64000， QP3， EW56， EW58， EI59; 24 volt， 60 Hz AC motor; 24 gauge galvanized steel construction; 6" round duct; Height 6.00; Width 9.00; Depth 10.00; Weight; Color; Operating System; Batteries Included; Batteries Required; Number of Batteries; Battery Type no batteries required; Language English， French， Spanish; Assembly Required</li><li>Normally closed damper</li><li>Foam seal minimizes air leakage</li><li>Synchronized to only open during fan or range hood operation</li><li>Doesn't let unwanted air into the home during heating/cooling</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51H9jNZsz8L.jpg' noproxy></br>