---
product_id: 399205630
title: "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, blue"
brand: "turbro"
price: "$598.84"
currency: USD
in_stock: true
reviews_count: 5
category: "Turbro"
url: https://www.desertcart.ec/products/399205630-airsupply-es4-4-inch-inline-duct-fan-with-solid-metal
store_origin: EC
region: Ecuador
---

# 18W ultra-efficient power 195 CFM airflow 37 dB whisper-quiet 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, blue

**Brand:** turbro
**Price:** $598.84
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game with whisper-quiet, powerhouse ventilation.

## Quick Answers

- **What is this?** 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, blue by turbro
- **How much does it cost?** $598.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/399205630-airsupply-es4-4-inch-inline-duct-fan-with-solid-metal)

## Best For

- turbro enthusiasts

## Why This Product

- Trusted turbro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Durability:** No assembly needed; permanently lubricated bearings mean less maintenance, more uptime.
- • **Powerful yet Energy-Savvy:** Delivers 195 CFM airflow at just 18 watts—maximize ventilation without maxing your energy bill.
- • **Built to Brave Any Environment:** Airtight steel case with IP44 waterproof rating ensures relentless performance in harsh conditions.
- • **Silent Control at Your Fingertips:** Variable speed controller lets you dial from 0-100% fan speed with zero annoying hums or buzzes.
- • **Versatile Ventilation for Every Space:** Perfect for grow tents, bathrooms, server rooms, or industrial workshops—airflow that adapts to your lifestyle.

## Overview

The AirSupply ES4 is a compact 4-inch inline duct fan engineered for high-efficiency ventilation, delivering 195 CFM airflow at 5000 RPM while consuming only 18 watts. Featuring a durable airtight steel case with IP44 waterproof protection and a brushless DC motor, it operates quietly at 37 dB with a variable speed controller for precise airflow management. Ideal for grow tents, bathrooms, and industrial spaces, it combines robust performance with energy savings and easy installation.

## Description

Features: √ 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

Review: Failed after 5 months - Seller has a 2 year warranty , poof seller is gone from desertcart, so is the warranty. desertcart sorry you are out of luck.
Review: Very nice, quality, made to last - Really powerful little fan. It’s made of sturdy metal and feels like it’s made to last. The settings run 1-100 and it’s very sensitive/responsive when turning up or down. When on full blast it can get loud but that’s because it outputs air like a jet engine. You can probably find cheaper fans that are similar size but this one is probably the best quality you’re going to find.

## Features

- 【Outstanding Ventilation】The AirSupply ES4 delivers an airflow of 195 CFM at 5000 RPM with only 18 watts of power. Our brushless DC motor (EC motor) performs 30% more efficiently with 60% less power consumption than AC motors.
- 【Sturdy 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.
- 【Quiet Operation】Whisper-quiet operation is possible thanks to the variable speed controller. Adjust from 0-100% fan speed to without any increase in humming or buzzing sounds.
- 【Easy to Use】The 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, server rooms, A/V equipment, or industrial workshops.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0894RP1Y2 |
| Air Flow Capacity | 195 Cubic Feet Per Minute |
| Best Sellers Rank | #1,207,796 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,607 in Exhaust Fans |
| Blade Length | 4 Inches |
| Blade Material | Plastic |
| Brand | TURBRO |
| Brand Name | TURBRO |
| Collection Name | Inline Duct Fans |
| Colour | Blue |
| Control Method | App |
| Controller Type | Button Control |
| Customer Reviews | 4.5 out of 5 stars 158 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Metallic |
| Global Trade Identification Number | 00816621022709 |
| Included Components | Cord |
| Indoor Outdoor Usage | Indoor |
| Installation Type | wall-mounted |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 15.9D x 18.4W x 15H Centimeters |
| Item Type Name | 195 CFM Energy Efficient Exhaust Fan with Variable Speed Controlled EC Motor for Grow Tents, Hydroponics, Industrial and Residential Ventilation |
| Item Weight | 2.7 Pounds |
| Main Power Connector Type | Standard North American 3-prong plug (Type B) or Standard North American 2-prong plug (Type A) |
| Manufacturer | TURBRO |
| Material Type | Alloy Steel |
| Model Name | AirSupply ES4 4 Inch Inline Duct Fan |
| Model Number | ES4 |
| Motor Type | brushless DC motor |
| Mounting Type | Window Mount |
| Noise Level | 37 Decibels |
| Number Of Speeds | 101 |
| Number of Blades | 7 |
| Number of Power Levels | 101 |
| Part Number | ES4 |
| Power Source | Electric |
| Power Source Type | Electric |
| Product Dimensions | 15.9D x 18.4W x 15H Centimeters |
| Recommended Uses For Product | Air Circulation |
| Room Type | Bathroom |
| Size | 4 Inch (195 CFM, 18 W) |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | Controlled |
| Speed | 5000 RPM |
| Standby Power Shutoff | Energy Efficient |
| Style | Industrial |
| Style Name | Industrial |
| Switch Type | Push Button |
| UPC | 816621022709 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Wattage | 18 Watts |

## Product Details

- **Brand:** TURBRO
- **Colour:** Blue
- **Electric fan design:** Exhaust Fan
- **Power Source:** Electric
- **Style:** Industrial
- **Product Dimensions:** 15.9D x 18.4W x 15H Centimeters
- **Room Type:** Bathroom
- **Special Feature:** Controlled
- **Recommended Uses For Product:** Air Circulation
- **Noise Level:** 37 Decibels

## Images

![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, blue - Image 1](https://m.media-amazon.com/images/I/61PF3oK6dEL.jpg)
![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, blue - Image 2](https://m.media-amazon.com/images/I/71-hel8TboL.jpg)
![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, blue - Image 3](https://m.media-amazon.com/images/I/71s6yCSY1tL.jpg)
![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, blue - Image 4](https://m.media-amazon.com/images/I/71jTJR6jUYL.jpg)
![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, blue - Image 5](https://m.media-amazon.com/images/I/718nbaQZntL.jpg)

## Questions & Answers

**Q: How far can the air be pushed  from one room to another**
A: It’s 195 CFM. depends on the duct work.   Go bigger and get the speed control. It’s a good quality fan.

**Q: How far for the fan unit can the speed control be mounted?**
A: Hi thank you for your inquiry. This speed control comes with a 16 ft cable, and it could be mounted away from the fan not more than 16 ft.  
Should you have any further question, please kindly contact us by support@turbro.com.

**Q: Can this dc power motor be adapted to be driven from a dc power source?**
A: This unit operates at 110vac input.  What DC voltage did you have in mind. I think that this motor operates at a higher voltage that would not make DC practical.

**Q: Is the fan reversible?**
A: No. The unit is single direction.

## Customer Reviews

### ⭐ Failed after 5 months
*by A***R on 18 July 2024*

Seller has a 2 year warranty , poof seller is gone from amazon, so is the warranty. Amazon sorry you are out of luck.

### ⭐⭐⭐⭐⭐ Very nice, quality, made to last
*by J***E on 31 July 2021*

Really powerful little fan. It’s made of sturdy metal and feels like it’s made to last. The settings run 1-100 and it’s very sensitive/responsive when turning up or down. When on full blast it can get loud but that’s because it outputs air like a jet engine. You can probably find cheaper fans that are similar size but this one is probably the best quality you’re going to find.

### ⭐⭐⭐⭐⭐ Works good.
*by T***N on 3 December 2025*

Works good. Good craftmanship.

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-07-08*