This listing is for a new VIVOSUN AeroZesh T4/T6 inline duct fan smart ventilation system designed for grow tent ventilation. It is a practical option for buyers setting up or replacing airflow equipment for indoor growing spaces and looking for a fan system matched to this specific model line. Free shipping is included, which may help when comparing total cost. Because the title references both T4 and T6, shoppers should review the listing carefully to confirm the exact model and compatibility before purchase. Condition is listed as new. If you are comparing ventilation parts for a grow tent setup, this item may suit buyers who already know the size or configuration they need. Check the listing for full details. VIVOSUN AeroZesh T4/T6 Inline Duct Fan Smart Ventilation System For Grow Tent. Color: Black, Condition: New. Listed at 69.99 USD. Optimal for Indoor Growth: Ultra powerful and adjustable, the AeroZesh can be used in various sized rooms and is the center of your ventilation system; Equipped with a long power cord for easy installation, it can be hung anywhere in your tent easily.Optimal for Indoor Growth: Ultra powerful and adjustable, the AeroZesh can be used in various sized rooms and is the center of your ventilation system; Equipped with a long power cord for easy installation, it can be hung anywhere in your tent easily.