Inline Duct Fan Exhaust Ventilation Home Indoor Air Vent Cooling Steel Blade 20W Description: The vent fan is used for indoor ventilation. Adopted quality steel construction, more sturdy and durable than normal plastic material fan. Strong and high efficient. Environment-friendly, no pollution caused. Smooth operation. Silent fan blade operation design, low noise, work decibel is under 60dB. Quality product at good price. Worthy to buy! Features: The vent fan is mainly adopted quality steel material for the fan blades, more sturdy and durable than normal plastic material fan blade. Strong and high efficient. Environment-friendly, no pollution caused. Light weight and practical, smooth operation. Silent fan blade operation design, low noise, work decibel is under 60dB. Adopted special full sealed roller motor, long service lifespan. It is a ideal choice for venting a growing area, or used in conjunction with a carbon filter for odor control.     Specifications: Condition: Material: Steel Color: White & Silver as picture Power: 20W Revolving Speed: 2800R/Min Air Volume: 140m³/H Size: Approx. 9.7 x 7.7cm / 3.8 x 3in (Dia. x Height) Cable Length: Approx. 25cm / 9.8in Package Weight: 456g Package Included: 1 x Vent Fan Note: 1. Please allow 0~1inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.