PATIKIL 6 Inch to 3 Inch Round Duct Reducer Increaser Connector, Galvanized Steel Adapter Pipe Fitting for Bathroom Kitchen Ventilation Systems, Silver Tone

Additional Details from the Manufacturer

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• Material: Galvanized Steel Color: Silver Tone Biggest Outer Dia.: 150 mm / 6 Inches. Smallest Outer Dia: 80 mm / 3 Inches. Length: 210 mm / 8.3 inches. Package List: 1 pcs Duct Reducer
• Advantage: The duct adapter is made of galvanized steel material, which is not easy to rust and corrode, and the surface is treated very smooth.Galvanized iron retains the strength and toughness of ordinary carbon steel, so it has certain mechanical properties. Galvanized iron has better fire resistance than ordinary steel. And the ventilation resistance of galvanized air duct is small and will not cause noise.
• Instruction: Raised lip on both openings allows connecting ducts to get a better grip. Once installed, reducer should be secured with clamps or any preferred fastener. Easy to operate, you can use glue or use steel frame and high temperature resistant steel wire to fix the connection for your long-term use.
• Application: The air duct adapter is designed to paired with exhaust fans and dust collectors for all dryer vent pipes, hoses, bathroom extractors and vents, air conditioning and heating units, kitchen vents and fans, all home wall and ceiling vents, heat transfer and ventilation systems, gas and electric dryers, cooker hood extractors, as well as a wide variety of industrial uses.
• Notice: Please confirm the specification and size of the product before you buy it. The bite seam of the air duct should be tight and the width should be consistent. Reducing the diameter of the hem should be bent by a bending machine, and manual bending is prohibited.