Description
Valcourt 4"Ø Fresh Air Intake Register with Airtight Damper 10pcs. d27 Model STN 10 Number of Rocks 1200W WM6 NG DMI G9T F5P NB Model STN 10 Number of Rocks 10 River Rocks Material Refractory Ceramic Warranty When your chimney is oversized This device opens and closes the fresh air supply to a wood or pellet heating appliance being certified with a 4" fresh air intake kit Its simple mechanism makes it possible to close the damper tightly when the heating appliance is not in operation