Top 8 4 Inch Duct Fan – Hydroponic Ventilation Equipment

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1. AC Infinity


Ventilation Exhaust Fan for Heating Cooling Booster, Hydroponics, AC Infinity CLOUDLINE S4, Grow Tents, Quiet 4” Inline Duct Fan with Speed Controller

AC Infinity #ad - See t-series for temperature and humidity controls. Mixed flow design combined with an EC-powered motor for a truly quiet and energy efficient performance. Airflow: 205 cfm | noise: 28 dBA | Bearings: Dual Ball. Designed to ventilate grow tents, transfer heating/cooling to rooms, circulate air, exhaust odors, and cool AV racks. Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware. Features an 8-speed manual controller utilizing PWM. Duct size: 4” | dimensions: 6. 9 x 11. 9 x 7. 4 in.
BrandAC Infinity #ad
ManufacturerAC Infinity #ad
Part NumberAI-CLS4

2. AC Infinity


Hydroponics, Grow Tents, AC Infinity CLOUDLINE T4, Quiet 4” Inline Duct Fan with Temperature Humidity Controller, Ventilation Exhaust Fan for Heating Cooling Booster

AC Infinity #ad - Intelligent controller with temperature and humidity programming, timer, fan speed control, and alarm system. Airflow: 205 cfm | noise: 28 dBA | Bearings: Dual Ball. Designed to ventilate hydroponic grow rooms, transfer heating/cooling, cool AV closets, and exhaust odors. Duct size: 4” | dimensions: 6. 9 x 11. 9 x 7. 4 in. Mixed flow design combined with a PWM-controlled DC or EC-motor for a truly quiet and energy efficient performance. Kit also includes corded sensor probe, AC power plug, two duct clamps, and required mounting hardware.
BrandAC Infinity #ad
ManufacturerAC Infinity #ad
Part NumberAI-CLT4



195 CFM Energy Efficient Exhaust Fan with Variable Speed Controlled EC Motor for Grow Tents, Industrial and Residential Ventilation, Hydroponics, TURBRO AirSupply ES4 4 Inch Inline Duct Fan

TURBRO #ad - Quiet operationwhisper-quiet operation is possible thanks to the variable speed controller. Easy to usethe duct fan and controller can be mounted with no additional assembly. The permanently-lubricated bearing reduces wear and tear to cut down on maintenance.

Multiple applications designed for increased air circulation and moisture/odor removal in grow tents, greenhouses, bathrooms, A/V equipment, server rooms, or industrial workshops. Adjust from 0-100% fan speed to without any increase in humming or buzzing sounds. Durable construction engineered with an airtight steel case and IP44 waterproof protection in a compact design, the ES4 will stay running in harsh environments, big or small.

Outstanding ventilationthe es4 delivers an airflow of 195 cfm at 5000 RPM with only 18 watts of power. Our brushless dc motor performs 30% more efficiently with 60% less power consumption than AC motors.
BrandTURBRO #ad
ManufacturerTURBRO #ad
Height5.91 Inches
Length6.26 Inches
Weight2.7 Pounds
Width7.24 Inches
Part NumberES4
WarrantyWe provide a 2-year warranty from the purchase date.

4. iGrowtek


Vent Blower for Grow Tent indoor, iGrowtek 4 Inch 195 CFM Inline Duct Ventilation Fan

iGrowtek #ad - Reasonable design: the light and compact fan takes up the smallest space; it can also be used in a small space. The cable length is 5. 9 feet and can be easily set.

The efficient baffle function can increase airflow while reducing noise output. Powerful blower for optimal ventilation. Low noise: the deflector makes the fan airflow more concentrated and reduces the turbulence energy, thereby reducing the sound output to only 30 dB. Simple installation: the flanges on the intake and exhaust ends can be connected easily and easily. Effective ventilation: fan speed is 2500 RPM, Air flow is 195 CFM. Versatile applications:suitable for growth room, basement or kitchen, improve air circulation, reduce humidity and lower temperature.
BrandiGrowtek #ad
ManufactureriGrowtek #ad

5. Spider Farmer


Grow Tents, SPIDER FARMER 4 Inch Inline Duct Fan with Speed Controller, 205 CFM EC Motor Quiet Ventilation Exhaust Fan for Heating Cooling Booster, Hydroponics

Spider Farmer #ad - The exhaust fan is ETL/FCC listed. Lightweight abs blades reduce the airflow resistance, only produces 28 DB, very low noise level, add airflow by 40%. With only 25 watts of power but gives a strong airflow up to 205 CFM, this 4” exhaust fan is silent.

Worry free shoppingspider farmer promises to provide excellent customer service support before and after buying. Built to lastmade of premium abs plastic housing for superior durability, making it highly resistant to dust and liquids, IP42 rated, and performs well even in harsh environments. Quiet & powerfulmixed flow design combined with a ec motor that powers high-quality impellers makes this fan truly energy efficient than a traditional line fan.

If you have any questions, please feel free to contact us via email. Wide applicationsl designed for air circulation boosting of cooling and heating systems and air-circulation in The 4 Inch Inline duct fan is a great option for grow tents, closet, kitchens, bathrooms, storage rooms, basements and more. Adjustable speedthe fan speed controller allows you to set your fan speed freely and it is essential for optimal growth of your plant.
BrandSpider Farmer #ad

6. iPower


Black, 4" Fan & Speed, iPower 4 Inch 195 CFM Inline Duct Ventilation Fan Air Circulation Vent Blower with Variable Speed Controller for Grow Tent

iPower #ad - Durable 3-pole grounded plug construction. Can use in grow tents, grow rooms, basements, bathrooms, greenhouses, garage. Variable speed controller: one control switch for 3 settings: HIGH, MED, LOW.

Low noise design reduces sound output to just 30 dB. 9 feet length power cord. Power source Type: Corded-Electric. Built-in grounded control outlet. Flanges on both the intake and exhaust ends for simple and easy hookup, 5. Mini construction: lightweight, compact fan takes up minimal space, suitable for applications where larger fans just won’t fit.

Multifunction: perfect for improve air flow, reduce humidity, locker rooms, kitchens, clear the air and lower temperatures. High effective fan: transfer air to your target location in a quick and reasonably quiet way, with a fan speed of 2500 RPM for an air flow of 195 CFM. Package include: 1 pack 4 inch inline fan, 1 pack fan speed controller.
BrandiPower #ad
ManufactureriPower #ad
Height7 Inches
Length8.1 Inches
Width7.7 Inches
Model4 Inch 195 CFM Inline Duct
Warranty1 year

7. iPower


1-Pack, iPower GLFANXINLINE4 4 Inch 190 CFM Inline Duct Ventilation Fan HVAC Exhaust Blower for Grow Tent, Silver, Grounded Power Cord

iPower #ad - Advantages: remove heat from the system to solves air delivery problems without major system rework or expense. Package including: 1 pack 4inch 190 CFM inline duct ventilation fan.

Tight and precise construction reduces wear and tear to give the element a long life. 110v standard household plug; Pre-wired 5 Feet power cord. Easy to install: the installation process only takes a few minutes. Specifications: diameter: 4inch; air flow: 190 cfm; speed: 2460 rpm; Wattage: 74W; Noise level: 65dB. Tip: the maximum ambient temperature is 176°F/80°C; Without speed controller. Permanently lubricated bearing that requires zero maintenance. Durability: durable ceramic-coated can resist atmospheric corrosion from humidity. Suitable for industrial, household and horticulture ventilation applications for air clean and temperature control. Power source type: Corded Electric.
BrandiPower #ad
ManufactureriPower Grow Light #ad
Height11 Inches
Length8.5 Inches
Weight8 Pounds
Width12 Inches

8. iPower


IPower GLFANXEXPSET4CHUMD 4 Inch 150 CFM Inline Filter with Fan Speed Controller and Temperature Humidity Monitor Grow Tent Ventilation, 4" Kits, Black

iPower #ad - Free high reliability and accuracy humidity monitor: fast response that measures every 10 seconds, wide measuring range that measures temperature from 14℉ to 122℉(-10℃~50℃. To avoid the risk of burning out the fan motor, medium, controller does NOT adjust below 50%.

Humidity sensor measures humidity from 10% to 99%. Power source Type: Corded Electric. We recommend replace the Pre-Filter every 6 months to protect your filter. 4 inch filter: dimensions, 4 inches flange ducting x 12 inches Length, Reversible flange. Multi functional: this ventilation combo removes heat and eliminate the undesirable ill-smelling odors in the grow tent to solves air delivery problems without major system rework or expense.

Powered by 3v cR2032 button battery included. 4 inch 150 cfm duct inline fan blower: Composite fan blades and center hub which reduces noise and vibration. Free pre-Filter included. Fan speed controller: variable speed, off, high, low.
BrandiPower #ad
ManufactureriPower #ad
Height9.3 Inches
Length18 Inches
Width14 Inches
Warranty1 year manufacturer warranty