Spider Farmer 4 Inch Inline Duct Fan with Speed Controller, 205 CFM EC Motor Quiet Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, for Growing and Planting

Spider Farmer 4 Inch Inline Duct Fan with RJ12 Speed Controller, 205 CFM Quiet EC Motor, Ventilation Exhaust Fan for Heating Cooling Booster, Grow Tents, Hydroponics, Indoor Gardening

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

Spider Farmer 4 Inch Air Carbon Filrer Smelliness Control with Premium Australia Virgin Charcoal for Inline Duct Fan, Grow Tent Odor Control, Hydroponics, Pre-Filter Included, Reversible Flange