Description
DuraVent Concentric Vent System 3" x 5" Black Pellet Adapter h11.13 Fresh Air Inlet Increaser 3" 1200W WM6 NG DMI G9T F5P NB Fresh Air Inlet Increaser 3" and can be an addon to use with Dr Infrared Heater brand melting mat set (model # DR 101) maintained In case of a chimney fire