Soddisfatti O Rimborsati Manrose Back Draught Shutter 4″/100mm

The Manrose 100mm (4″) In-Line Backdraught Shutter is an essential addition to any ventilation system that helps maintain indoor comfort and energy efficiency. Installed within a ducting run, this device prevents unwanted cold air, odours, and debris from re-entering the building when your ventilation fan is not in operation.Crafted from lightweight and durable PVC, this in-line shutter is designed for quick and easy integration with existing 100mm round ducting. Whether for domestic kitchens, bathrooms, utility rooms, or commercial installations, it ensures a more controlled and hygienic air environment.Key FeaturesPrevents Air BackflowAutomatically closes when airflow stops, blocking drafts and external air from re-entering the property.Energy-EfficientHelps maintain indoor temperatures and reduces heat loss, supporting more efficient heating and cooling.Low-Resistance DesignOpens with minimal airflow resistance, ensuring that fan performance is not compromised.Lightweight & DurableConstructed from white PVC, offering reliable operation with resistance to corrosion and wear.Universal FitCompatible with most 100mm (4″) round ducting systems, including flexible and rigid ductwork.Technical SpecificationsAttributeSpecificationProduct TypeIn-Line Backdraught ShutterDuct Compatibility100mm (4″) Round DuctingMaterialPVCOperating MechanismGravity-operated flapsInstallationInline – fits between duct runsWeight (Boxed)60gApplicationsBathroom extract fansKitchen ventilation systemsUtility roomsInline fan ducting systemsHVAC systems in both residential and commercial settingsInstallation NotesInstall the shutter with the arrow pointing in the direction of airflow.Ensure the unit is level to allow gravity flaps to close properly.Suitable for horizontal or vertical duct runs.Can be used in conjunction with extractor fans and inline fans.Frequently Asked Questions (FAQ)Q: Does this shutter work with both rigid and flexible ducting?A: Yes, it can be installed with either type, as long as the ducting has a 100mm internal diameter.Q: Will this affect fan performance?A: No, the flaps are designed to open with minimal airflow resistance, so your fan will operate efficiently.Q: Is this suitable for external wall mounting?A: It is intended for use within the ducting run. For external terminals, a grille with integral shutters is recommended.Warranty InformationAll Manrose products, including this in-line backdraught shutter, are covered by a 1-year manufacturer’s warranty against material or manufacturing defects under normal usage and installation conditions.