The duct connector flange is mainly used to connect duct hose to a output port through a bolted connection. Widely used on the home, kitchen, bathroom, garage, and office. Suitable for these area which need a ventilation system.SpecificationColor: BlackMaterial: ABS PlasticOuter Diameter: 75mm / 3inchTotal Size:100mmx48mm / 3.93inchx1.9inch(D*L)Screw Mounting Hole: 4.5mm / 0.18inchDiagonal Mounting Hole Distance: 76mm / 3inchMounting Hole Distance: 76mm / 3inchPacking List: 2 x Duct Connector FlangeAdvantage Made of ABS plastic material, which has good hardness and corrosion resistance, and it don't have smell, durable to use in ducting ventilation system.The connector has screw mounting holes, don't need you to drill one.The surface is smooth and good for connecting the duct.
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