Duct flanges are widely used for air ventilation systems in homes, kitchens, bathrooms, garages, factories, etc. What's more, it can be used on welded exhaust pipe, spiral exhaust pipe, exhaust pipe elbow fittings, fan hose connector.SpecificationColor: Silver GreyMaterial: Galvanized IronInterface Outer Diameter: 73mm / 2.9 inchOverall Height: 48mm / 1.89 inchBase Outer Diameter: 113mm / 4.45 inchScrew Hole Diameter: 4.5mm / 0.18 inchDiagonal Mounting Hole Distance: 103mm / 4.06 inchDistance Between Adjacent Mounting Holes: 50mm / 1.97 inchPacking List: 1pcs x Duct Connector Flange, 6 x ScrewsAdvantages1. The flange is made of galvanized iron, which is wear-resistant, strong in corrosion resistance, not easy to deform, and durable.2.
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