3 Inch Duct Connector Flange, 2 Pack Metal Fitting Straight Pipe Flange Round Ventilation Air Duct for Heating Cooling Ventilation HVAC System 5/16" X 15/32" X 9.8' Operating temperature: -10C to +

Operating temperature: -10C to + 55CClear and easy to read scale

with oxidation resistance

Leg Length: 115mm / 4

Type: B-36

0L 1989-2000

3 Inch Duct Connector Flange, 2 Pack Metal Fitting Straight Pipe Flange Round Ventilation Air Duct for Heating Cooling Ventilation HVAC System 5/16" X 15/32" X 9.8' Operating temperature: -10C to +Duct flanges are widely used for air ventilation systems in home, kitchen, bathroom, garage and factory etc. Specification Color: Grey Material: Galvanized Iron Interface Outer Diameter: 73 mm 2. 9 inch Diagonal Mounting Hole Distance: 100 mm 3. 9 inch Distance Between Adjacent Mounting Holes: 50 mm 2 inch Base Outer Diameter: 113 mm 4. 4 inch Packing List: 2 x Duct Connector Advantages 1. The connector is made of galvanized iron, which is anti