Photo 1 of VIVOSUN AeroZesh G4 4-inch 195 CFM Inline Duct Fan with E12 Speed Controller, Entirely Programmable PWM-Controlled EC Fan for Grow Tent Ventilation

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Photo 1 of VIVOSUN AeroZesh G4 4-inch 195 CFM Inline Duct Fan with E12 Speed Controller, Entirely Programmable PWM-Controlled EC Fan for Grow Tent VentilationPhoto 2 of VIVOSUN AeroZesh G4 4-inch 195 CFM Inline Duct Fan with E12 Speed Controller, Entirely Programmable PWM-Controlled EC Fan for Grow Tent Ventilation