4''6''8'' Pipe Exhaust Fan Air Ventilator Metal Pipe Ventilation Exhaust Fan Mini Extractor Bathroom Toilet Wall Fan Duct Fan ,Energy-Efficient

All metal reinforced paint body, two-way interface high speed ventilator One machine multi-purpose for all kinds of places Bass noise reduction is not easy to shake Power pure and smooth large air volume, high speed, pure copper wire wear-resistant motor In order to ensure large air volume while reducing sound and noise stable and vibration free operation, not easy to deformation