Photo 1 of iPower 4 Inch 130 CFM Inline Duct Fan with Variable Speed Controller HVAC Quiet Exhaust Blower, for Grow Tent Ventilation, 4" Fan & Speed, Black

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Photo 1 of iPower 4 Inch 130 CFM Inline Duct Fan with Variable Speed Controller HVAC Quiet Exhaust Blower, for Grow Tent Ventilation, 4" Fan & Speed, BlackPhoto 2 of iPower 4 Inch 130 CFM Inline Duct Fan with Variable Speed Controller HVAC Quiet Exhaust Blower, for Grow Tent Ventilation, 4" Fan & Speed, BlackPhoto 3 of iPower 4 Inch 130 CFM Inline Duct Fan with Variable Speed Controller HVAC Quiet Exhaust Blower, for Grow Tent Ventilation, 4" Fan & Speed, Black