6" to 4" Duct Reducer, 3 Pack ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 16mmx42mmx2m Ingress Protection Rating: IP67

Ingress Protection Rating: IP67

Wider using range (rough processing

4inch(263mmx182mmx60mm)(L*W*H)

office and shop

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

6" to 4" Duct Reducer, 3 Pack ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 16mmx42mmx2m Ingress Protection Rating: IP67This 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