Inline Duct Fan, 4-Inch 200 CFM with Variable Speed Controller, Quiet AC-mot…

Inline Duct Fan, 4-Inch 200 CFM with Variable Speed Controller, Quiet AC-motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics High-efficiency AC motor Quiet an Operation Randomly Control the Speed Ideal for Indoor Uses Complete Accessories Durable for Years to Come Airflow: 200 CFM,Noise Level: 50 dB (About 29 dB),Item Size (L x W x H): 12 x 9.3 x 7.5 in / 304 x 235 x 190 mm,Motor Type: Copper Motor,Model: VV-GDFJ-AC4,Air Pressure: 165 Pa,Rated Power: 31 W,Fan Speed: 2550 RPM,Item Weight: 4.4 lbs / 1.98 kg,Voltage / Frequency: AC 110V-240V, 50/60Hz

Inline Duct Fan, 8-Inch 807 CFM with Temperature Humidity Controller, Quiet …

Inline Duct Fan, 8-Inch 807 CFM with Temperature Humidity Controller, Quiet EC-motor Ventilation Exhaust Fan for Cooling Booster, Grow Tents, Hydroponics High-efficiency EC motor Quiet an Operation Innovative Airflow Control Ideal for Indoor Uses Complete Accessories Durable for Years to Come Airflow: 807 CFM,Noise Level: 50 dB (About 39 dB),Item Size (L x W x H): 12 x 9.4 x 10.8 in / 304 x 240 x 275 mm,Motor Type: Copper Motor,Model: VV-GDFJ-EC8,Air Pressure: 350 Pa,Rated Power: 68 W,Fan Speed: 3000 RPM,Item Weight: 6.4 lbs / 2.9 kg,Voltage / Frequency: AC 110V-240V, 50/60Hz