4" Inline Duct Booster Fan Air Exhaust Home Blower Grow Vent Ventilator Kitchen Ventilation Fan

Features: -Powerful and high efficient performance. -High-quality steel fan blade, durable and powerful than plastic fan blades. -Lightweight and practical, operates as smooth as any fan we've come across -Extremely quiet, the fan blades are quietly designed with a working decibel less than 60dB. -Use special fully enclosed roller motor, long usable life -Environmental protection and no pollution -A Ideal choice for ventilation of grow room, or used in conjunction with a carbon filter for odor control. Specifications: Model: DFA100 Material: Steel Voltage:220V 50Hz Power:20W Revolving Speed:2800R/Min Air Volume:140m/H Diameter:100mm Height: 75mm Color: White+Silver Package Included: 1 x Duct Booster Vent Fan