Keep unwanted air from flowing back through your ventilation system with this exhaust fan backdraft damper for kitchen and bathroom ducts. Its oneway valve design opens with outgoing airflow and closes afterward to help reduce reverse drafts. The...
Keep unwanted air from flowing back through your ventilation system with this exhaust fan backdraft damper for kitchen and bathroom ducts. Its oneway valve design opens with outgoing airflow and closes afterward to help reduce reverse drafts. The...