Features:<br> brand new and high quality<br> The damper is suitable for controlling the air volume from full flow to shut-off.<br> The damper is made of plastic and is equipped with a plastic tube.<br> It can work with a thermostat to automatically turn on and off.<br> The air tightness is good, the tightness is as high as 98%, and the adjustment performance is good.<br> The for valve body and blades are made of new materials, odorless, pollution-free, wear-resistant and corrosion-resistant, and easy to disassemble.<br> <br> Specifications:<br> Material: PVC<br> Weight: 538g<br> Size: As picture shows<br> Interface: DN75/DN110/DN160<br> Voltage: DC12V/220V/AC24V/DC24V<br> <br> Note:<br> 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order.<br> 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.<br> <br> Package includes:<br> 1x Motorized Damper