4 to 3 Inch Duct Reducer, Hon&Guan Galvanized Steel Duct Increaser 4 to 3 Duct Reducer for 3/4 Inch Duct, Inline Fan, Grow Tent Ventilation System-Black.

4 to 3 Inch Duct Reducer, Hon&Guan Galvanized Steel Duct Increaser 4 to 3 Duct Reducer for 3/4 Inch Duct, Inline Fan, Grow Tent Ventilation System-Black.

• ?【APPROPRIATE SIZE】: On one side there is a 99mm Female Spigot（inner:98mm） - Will fit into 4'' dust collection hose/4 inch fan. On the other side there is a 74mm(inner:73mm) Male Spigot - Will fit into 3 inch duct/exhaust fan.
• ?【DURABLE MATERIAL】: 4 inch to 3 inch duct reducer made of galvanized steel, which is stronger and more resistant to high temperatures than ordinary plastic or pvc duct reducer, and is suitable for dryer vent environments.
• ?【EASY INSTALLATION】:No tools are needed to install the 4 to 3 reducer, our calibre makes it easier to fit your duct on, and with the purchase of Hon&Guan hoses, clamps are included to make the duct connection between your reducer and the hose even tighter.
• ⭐【WIDELY APPLICATION】: 4in to 3in duct reducer designed for widely used, such as connecting laser engravers, 3D printers, diesel heaters, bathroom exhaust fans,roof vents, 3/4 inch duct and so on, perfect for DIY and trade use.
• ?【Buy with Confidence】:We promise to ensure your absolute satisfaction with every purchase. Risk-free shopping. If you are not satisfied about thisdust collection reducer, you can replace it for free .