Keep unwanted air out and your indoor comfort in with the Lambro 1775L draft blocker. This white plastic in-line accessory installs easily within your duct and is perfect for venting applications such as bath fans, clothes dryers, or general exhaust systems. It features a built-in flap that automatically opens with airflow and stays closed when not in use, effectively blocking outside air from flowing back into your home. With easy-to-read installation markings to ensure correct placement, this draft blocker boosts energy efficiency and comfort with minimal effort. A must-have for improving vent performance, with separate clamps available for flexible installation.
Get your Lambro 1775L draft blocker here at PlumbersStock! While you're here, take a moment to browse from our selection of HVAC products, such as air conditioning units and fireplaces, all available on our website.