Lambro 4 in. Draft Blocker Inline Damper

The Lambro 4 in. Draft Blocker Inline Damper is designed to enhance home comfort and ventilation efficiency by preventing unwanted outside air from entering through your clothes dryer exhaust system. It acts as an effective backdraft barrier, opening during dryer operation to allow exhaust flow and closing when the cycle completes. Engineered for simple integration, this inline damper easily installs directly into existing dryer venting systems. It provides a reliable and practical solution for maintaining proper airflow management and preventing outdoor drafts in residential applications.