Duct Fan Air Ventilator Metal Pipe Ventilation Exhaust Fan Mute Adjustable Extractor Bathroom Toilet Wall Fan Duct Fan 4/6 Inch ,Easy to Use

Powerful and highly efficient. Eco-friendly material, not easy to deformation, long life. Excellent solution for ventilation of your grow tent / room. Safe for any application: kitchen, bathroom, living room, bedroom, office, etc.