6" to 4" Duct Reducer, 3 Pack ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 16mmx42mmx2m Male Thread Size: M10 x

Male Thread Size: M10 x 28mm / M10 x 1

1 x DC 24V to DC 48V 10A Voltage Converter

anti-aging and durable

Overall Length(Closed): 538mm / 21

Wider using range (rough processing

6" to 4" Duct Reducer, 3 Pack ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 16mmx42mmx2m Male Thread Size: M10 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