This new VIVOSUN AeroZesh G4/G6/G8 inline duct fan is designed for grow tent ventilation setups and is listed with free shipping. It is a practical option for buyers building or replacing a smart ventilation system for indoor growing spaces. The model range in the title may help shoppers match the fan to an existing tent or airflow plan, but check the listing for full details on compatibility and what is included. As a buying note, review the exact G4, G6, or G8 version before purchase to make sure it fits your setup and ducting needs. Condition is listed as new, which may matter for those looking for unused grow tent equipment. VIVOSUN AeroZesh G4/G6/G8 Inline Duct Fan Smart Ventilation System For Grow Tent. Color: Black, Condition: New. Listed at 59.99 USD. About this item Efficient Ventilation: The AeroZesh G4 has powerful performance w/ airflow at 195 CFM(388CFM /725CFM) to create optimal ventilation for your grow space; A PWM controlled EC fan w/ mixed-flow design that is fully adjustable and responsive to the environment. E12 Speed Controller: Ten fan speeds controlled by PWM can be selected by you; Turn off and then on again, backup memory can remember the speed set before the last shutdown; Three ON/OFF cycle mode can achieve the cycle of wind speed to save power. Entirely Programmable: You can upgrade the E12 fan controller to an E42A multi-device controller for more functionality; The GrowHub controller can be integrated w/ the App system for intelligent remote control of remote automation via the App. Temperature Control: Optimal device for temperature control w/ powerful airflow at a quiet 28dB（32dB/51dB） operation to help balance humidity and temperature; w/ an included environmental probe, the AeroZesh monitors environmental changes and adjusts fan speed accordingly. 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 w/ a long power cord for easy installation, it can be hung anywhere in your tent easily. Model AeroZesh G4 w/E12/E42A AeroZesh G6 w/ E12/E42A AeroZesh G8 w/E12 /E42A Size 4 Inch 6 Inch 8 Inch Air flow 195CFM 388CFM 725CFM Fan Speed 2700 RMP 2500 RMP 3000 RMP Noise Level < 28dB < 32dB < 51dB Power Usage 20W 35W 78W Material Steel Steel SteelAbout this item Efficient Ventilation: The AeroZesh G4 has powerful performance w/ airflow at 195 CFM(388CFM /725CFM) to create optimal ventilation for your grow space; A PWM controlled EC fan w/ mixed-flow design that is fully adjustable and responsive to the environment. E12 Speed Controller: Ten fan speeds controlled by PWM can be selected by you; Turn off and then on again, backup memory can remember the speed set before the last shutdown; Three ON/OFF cycle mode can achieve the cycle of wind speed to save power. Entirely Programmable: You can upgrade the E12 fan controller to an E42A multi-device controller for more functionality; The GrowHub controller can be integrated w/ the App system for intelligent remote control of remote automation via the App. Temperature Control: Optimal device for temperature control w/ powerful airflow at a quiet 28dB（32dB/51dB） operation to help balance humidity and temperature; w/ an included environmental probe, the AeroZesh monitors environmental changes and adjusts fan speed accordingly. 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 w/ a long power cord for easy installation, it can be hung anywhere in your tent easily. Model AeroZesh G4 w/E12/E42A AeroZesh G6 w/ E12/E42A AeroZesh G8 w/E12 /E42A Size 4 Inch 6 Inch 8 Inch Air flow 195CFM 388CFM 725CFM Fan Speed 2700 RMP 2500 RMP 3000 RMP Noise Level < 28dB < 32dB < 51dB Power Usage 20W 35W 78W Material Steel Steel Steel