Why Choose This:★Interface Outer Diameter: 195 mm / 7.7 inch; Diagonal Mounting Hole Distance: 213 mm / 8.4 inch; Distance Between Adjacent Mounting Holes: 108 mm / 4.3 inch; Base Outer Diameter: 224 mm / 8.8 inch; Color: Grey; Material: Galvanized Iron; Packing List: 1 x Duct Connector★Application: Duct flanges are widely used for air ventilation systems in home, kitchen, bathroom, garage and factory etc.★Instruction: Screw the flange securely to the air inlet, air outlet, wall, ceiling or other surface for connecting to the ventilation system.★Advantages: 1. The connector is made of galvanized iron, which is anti-corrosion, cold-resistant, high-temperature resistant, not easily deformed, and durable. 2.
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