7" to 4.5" Duct Reducer, ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems Gray you can quickly identify and

you can quickly identify and get the correct size

The paint roller set comes with more paint rollers making it easy to change and paint another color in your work

Operating temperature: -5~60 Degree Celsius

distribution panels

7" to 4.5" Duct Reducer, ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems Gray you can quickly identify andThis 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