NAVIEN Backflow Damper, 5.9 Inch Height, Polypropylene, For Use with NHB Condensing Boilers
Height | : | 5.9 Inch |
Material | : | Polypropylene |
Suitable For Use With | : | NHB Condensing Boilers |
The Navien backflow damper prevents backflow (back-draft) at the exhaust vent while the boiler unit operates.