20CC 3/4In Circular Duct Fan Pipe Ventilation Fan Bathroom Kitchen Exhaust Fan

Specifications: Material:PP+ABS Type:3inch/4inch 3inch: Air volume: 220m3/h Pressure: 150pa Rotating speed: 2600r/mins Noise: 28-30db (A) Frequency: 50Hz Power: 35W Size:Approx.23x17.5x14.8cm/9.05x6.88x5.82inches 4inch: Air volume: 310m3/h Pressure: 180pa Rotating speed: 2600r/mins Noise: 28-30db (A) Frequency: 50Hz Power: 45W Size:Approx.26x21x19.5cm/10.23x8.26x7.68inches Package Includes: 1x Duct Fan Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.