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【Size】Made of galvanized steel. Adapts 6 inches to 4 inches.（Outer Diameter）
【Widely Application】Designed for bathroom extractor fans, HVAC systems, inline ventilators, cooker hoods, tumble dryers, hydroponics, kitchen
【Adventages】Maintains airflow efficiency by creating a connection between two different sized duct openings
【How to Use】The solid duct reducer or increaser can be used when connecting two different solid or flexible ducts or ducts to ventilators, 6 to 4 inch, or vice versa
【Easy to Install】Put it in the two ducting, easy to install the air duct reducer
TIP:Package No Sainless Steelclamps
