Manrose In Line Backdraught Shutter 100mm 4Inch Fan Draught Shutter - White

Manrose back draught shutter 4 inch/100mm EFFECTIVE BACKFLOW PREVENTION # The Inline back draught shutter 100mm/4 Inch is a crucial accessory for your ventilation system, designed to prevent unwanted air from flowing back into your home or building through your ductwork. This back draught shutter is designed to stop cold air, unwanted odours, and contaminants from entering your space by blocking reverse airflow when the ventilation system is not in use. LIGHTWEIGHT AND DURABLE CONSTRUCTION # Made from high quality, corrosion resistant materials, this in line shutter is durable and long-lasting. The lightweight design ensures that airflow through the ducting is not obstructed when the system is operating. SPRING LOADED FLAPS - The shutter features spring-loaded flaps that automatically close when airflow stops, providing an airtight seal. When the ventilation system is in operation, the flaps easily open to allow air to flow freely through the ducting. UNIVERSAL FIT - Designed to fit standard 100mm (4-inch) ducting, this shutter is compatible with most in-line fans, extractor fans, and ventilation systems, making it a versatile solution for any project. ENERGY EFFICIENT - By preventing backdrafts, this shutter helps to improve the overall energy efficiency of your heating and cooling systems, reducing energy costs by keeping conditioned air inside.