TURBRO AirSupply ES4, 4 Inch Inline Duct Fan with Solid Metal Case, 195 CFM Quiet Vent Fan with Variable Speed Controlled for Grow Tent and Ventilation

Airsupply ES4 Inline Duct Fan
In Stock
SKU: 707-AS-EC100

Regular price $99.99 $79.99

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【Outstanding Performace】 Utilizing the cutting edge brushless EC motor, ES4 performs 30% more efficiently than the AC motor powered duct fan but reduce up to 60% power consumption. It delivers 195 CFM airflow with 5000 RMP high speed and 335 strong pressure using only 18 watts. 

【Fully Adjustable & Quiet Running】The 0 - 100% variable speed controller allows you to effectively increase or decrease airflow speed from zero to a hundred percent without generating additional noise or hum. 

【Reasonable Construction】Mounting ES4 in the small grow tents can save much space with its compact design (unit size: 6.3 x 7.3 x 5.9 in). Engineered with airtight steel housing and IPX44 protection, ES4 doesn't afraid of the harsh elements as well as resist accidental damage.

【Easy to Use】You just need to mount the vent fan and controller without any parts assembly. Thanks to the permanently lubricated bearing, you get rid of maintenance. 

【Multiple Applications】ES inline fan is designed for air circulation in hydroponic grow tents, smell and moisture removal in bathrooms, and cooling AV racks. It's also applied in the industrial workshop to remove smoke and odors.

The AirSupply 4 Inch Duct Fan helps with all of your ventilation issues. The ES4 inline fan increases the centrifugal airflow vortex of your ventilation system to remove heat and humidity from grow tents, electronic equipment closets, and industrial workspaces. The airflow direction is reversible and can be used to intake fresh air into space or exhaust hot air or fumes from your space. It can even be used to pull air through odor-reducing carbon filters in grow tents.

Compared to old-school AC or DC motors, our brushless DC (also known as EC motor) and variable speed controller lets you precisely control your fan speed from 0-100% to increase efficiency while reducing noise and power consumption. With easy installation and reduced maintenance from the pre-lubricated bearings, the TURBRO AirSupply ES4 Inline Duct Fan will provide constant airflow for years to come.

√ Energy Efficient - Consumes up to 60% less power
√ Compact Design - Yet Powerful Ventilation with 195 CFM air flow at 5,000 RPM
√ Brushless DC Motor - Quiet Operation, Lasts 3x longer than AC motors
√ Variable Speed Controller - 0 to 100% speed control in 1% increments
√ Multiple Mounting Options - Hardware kit included for wall mounting

Package Includes:
1× 4'' Duct Fan (with a 6 ft. power cable and 3-prong plug)
1× Speed Controller (with 16-ft cable)
1× Installation Kit (Includes screws and anchors)


  • Model: ES4
  • Duct Size: 4 Inches
  • Air Flow: 195 CFM
  • Rated Speed: 5,000 RPM
  • Maximum Pressure: 335 Pa
  • Noise Level: ≤ 37 dB
  • Speed Controller: Potentiometer 0-100%
  • Environment Requirements: 15-140 °F, 15-93% RH
  • Water Proof: IP44
  • Certification: ETL Listed
  • Power Supply: 120V, 60Hz
  • Rated Power: 18 W
  • Current: 0.16 A
  • External Material: Aluminum Alloy
  • Weight: 2.7 lbs
  • Dimension: 6.26 x 7.24 x 5.91 in

    Customer Reviews

    Based on 53 reviews
    Louis V.


    Curtis K.
    ES4 Inline duct fan

    Pushs a lot of air.

    Trang N.
    Very slick, efficient and quiet

    This fan is very well built (solid metal casing), efficient and incredibly quiet. I did measure only 16 Watts of consumption !!!. Unfortunately I needed a fan that can deal with much higher static pressure (very long ducts).

    Good Value for the Price

    Using this to vent fumes when soldering. I like that it’s small enough that I can mount it on the wall with only push pins. Lightweight but sturdy. I would have given it five stars but it’s a little loud. It does the job. There’s no smell at all in my room after soldering.

    Manny P.
    Works great

    I run laser machines and use this fan to extract all fumes from it and it works very well.


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