Vent Systems 100 mm / 4" Inch Backdraft Damper Stopper - ABS Plastic Male Fit Dryer Vent Backflow with Shutter - One-Way Airflow Ducting Insert - Inline Fan Vent, Exhaust Pipe Adapter/Connector
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- APPLICATION The backflow preventer valve is installed by pushing it into the HVAC PVC pipe plastic pipe. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. Pipe fitting for use in an air duct, duct vent or AC duct. For home improvement - home, kitchen, bathroom or garage shed.
- MATERIAL & DURABILITY Crafted from durable ABS plastic, this material offers high strength, excellent toughness, and ease of processing. It's environmentally friendly and non-toxic, making it a safe choice for both residential and commercial ducting applications, including tumble dryer vents, extractor fans, ventilation systems, and cooker hoods.
- FUNCTIONALITY Duct draft stopper prevent cold air or wind from entering the ventilation pipe. In this case, the flap is installed in such a way that the flap leaves only open into the outgoing air direction. This means that no cold air wind or smell can penetrate the ventilation pipe from the outside.
- EASY INSTALLATION Designed to fit most extractor fans, bathroom fans, kitchen exhaust fans, in-line extract fans, cooker hoods, and various heating or cooling ducts. Just slide the flange into your round ducts and secure it with duct tape, pipe clamp pipe bracket, or sealant for a quick and straightforward installation (MOUNTING HARDWARE NOT INCLUDED).
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