4" Duct Connector Flange Straight Pipe Flange Round Ventilation Duct, 3 Pcs

The duct flange is widely used as air inlet and outlet connector in ventilation systems, suitable for ducting your air conditioning system, dust collection system, tumble dryer, extractor fan, exhaust fan, in-line extract fan, cooker hood, and so on. SpecificationColor: Silver ToneMaterial: Galvanized IronInterface Outer Diameter: 94 mm/3.7 inchDiagonal Mounting Hole Distance: 123 mm/4.8 inchDistance Between Adjacent Mounting Holes: 60 mm/2.4 inchBase Outer Diameter: 133 mm /5.2 inchHeight: 53 mm/2.1 inchPacking List: 3 Pcs x Duct ConnectorAdvantages1. 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. The surface of the ventilation flange is smooth, which is conducive to connecting the air duct.InstructionScrew the flange securely to the air inlet, air outlet, wall, ceiling or other surface for connecting to the ventilation system.NOTE: 1. Please pay attention to selecting the appropriate connection outer diameter before placing an order.2. Screws are not included in the package.