Duct flanges are widely used for air ventilation systems in home, kitchen, bathroom, garage and factory etc.SpecificationColor: GreyMaterial: Galvanized Iron, Stainless SteelInterface Outer Diameter: 95 mm / 3.7 inchDiagonal Mounting Hole Distance: 108 mm / 4.3 inchDistance Between Adjacent Mounting Holes: 53 mm / 2.1 inchBase Outer Diameter: 119 mm / 4.7 inchPacking List: 1 x Duct Connector, 1 x Stainless Steel ClampAdvantages1. The connector is made of galvanized iron, which is anti-corrosion, cold-resistant, high-temperature resistant, not easily deformed, and durable.2. The base of the connector has screw mounting holes, no drilling is required, and it is directly fixed on the wall with screws, which is easy to use.3.
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