VIVOSUN Smart Air Filtration T4 Kit 4″, AeroZesh T4 Inline Duct Fan with E12 Speed Controller, Carbon Filter & 8′ Ducting, Cooling & Ventilation System for Grow Tents, Indoor Gardening, Hydroponics

Efficient Cooling & Ventilation Kit: Includes AeroZesh T4 4” Inline Duct Fan, E12 Speed Controller, 4” Black Carbon Filter, and φ4” 8′ Black Ducting; Ideal for moving and transporting air in various air circulation and ventilation projects; Allows for precise and easy control over the fan speed and airflow, stabilizing and optimizing your growth environment
Energy-Saving & Low-Noise Fan: The fan boasts powerful performance with airflow at 210 CFM to create optimal ventilation for your grow space; Controlled by PWM, fully adjustable and more energy-efficient; The mixed-flow design enables the fans to distribute air over greater distances; At only 39 dB, the fan ventilates quietly
E12 Speed Controller: Ten fan speeds controlled by PWM can be selected by you; Turn off and then on again will allow the backup memory to recall the speed that was previously set; Three ON/OFF cycle mode can achieve the cycle of wind speed to save power; The controller can be integrated with the App system for intelligent remote control
Excellent Odor Control: Made with premium RC 412 Australian Virgin charcoal at 1200+ IAV, this carbon filter helps to eliminate pungent smells and chemicals; The 38mm thick charcoal bed with high microporosity ensures its high absorption; Comes with a pair of rope hangers which makes the assembly in grow tents more convenient
Perfect Connector: Made of top-notch aluminum, the ducting is strong and flexible; features a central PET thermoplastic layer sandwiched between two layers of protection; Comes with two heavy-duty stainless clamps for a secure connection