6" to 4" Duct Reducer, 3 Pack ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 8mmx16mmx5mm Mounting Hole Distance: 73 x

Mounting Hole Distance: 73 x 73 mm

20pcs x Corrugated Sheet

Rod Length: 50mm / 2"

The cable wrap opens and closes easily and quickly so you can add or remove cables

-This 22mm selector switch is designed to make an assembly

6" to 4" Duct Reducer, 3 Pack ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 8mmx16mmx5mm Mounting Hole Distance: 73 xThis duct pipe reducer connector is used to connect the pipes of equipment such as bathroom fans, range hoods and dust collectors to the ventilation duct system, you can connect two air ducts of different diameters to create a seamless ventilation system duct. Suitable in home, offices, kitchen, factory or apartments. Specification Color: White Material: ABS Height: 110 mm 4. 33 inch Inner Diameter: 150 x 94 mm 5. 91 x 3. 7 inch (Big*Small) Outer