Allvent Non Return Damper 125MM

The Allvent ALVBD12 ALV356 Non Return Damper is a 125mm in-line ducting accessory designed to help reduce backdraft in circular ventilation systems. Its air-stream operated shutter makes it a practical choice for bathrooms, laundries, toilets, kitchens, utility rooms, roof spaces and light commercial ducted exhaust installations where airflow needs to discharge in one direction. Designed for installation in-line with circular ducting, it helps prevent unwanted air returning through the duct run and supports more effective ventilation performance.

• Air-stream operated backdraft shutter
• Designed for in-line installation with circular ducting
• Helps reduce unwanted air returning through the duct system
• Suitable for exhaust fan and ventilation installations
• Ideal for bathrooms, laundries, toilets, kitchens and utility spaces
• Can be used in residential and light commercial ducted ventilation systems
• Part of the Allvent Non Return Damper range

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