VIVOSUN 4 Inch 190 CFM Inline Duct Ventilation Fan with Variable Speed Controller for Grow Tent Price: $49.99 (as of 19/04/2021 23:35 PST- Details)

EFFECTIVE VENTILATION: Powerful blower with a fan speed of 2300 RPM for an air flow of 190 CFM. Moves air through your target location efficiently for optimal ventilation
LOW NOISE LEVEL: Durable plastic fan housing and blades for extremely low noise(

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