2Pcs 7" to 4.3" Duct Reducer Ducting Airflow Tube Increaser Adapter Pipe Fitting Step Drill Bits Ideal electrical control switches in

Ideal electrical control switches in Mechanical and other industries

The use of the coil spring is for that are not uniform in size or direction

Height: 60mm / 2

just connect the two ends of the connector with pipes of appropriate size

Bore Diameter: 43mm

2Pcs 7" to 4.3" Duct Reducer Ducting Airflow Tube Increaser Adapter Pipe Fitting Step Drill Bits Ideal electrical control switches inThis 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: 173 x 110 mm 6. 81 x 4. 33 inch (Big*Small) Outer