---
product_id: 263761209
title: "VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black"
brand: "vivosun"
price: "941 kr"
currency: DKK
in_stock: true
reviews_count: 5
category: "Vivosun"
url: https://www.desertcart.dk/products/263761209-vivosun-inline-duct-fan-4-inch-203-cfm-with-variable
store_origin: DK
region: Denmark
---

# 345 m³/h airflow Low 49 dB noise Variable speed control VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black

**Brand:** vivosun
**Price:** 941 kr
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your grow game with silent, powerful airflow!

## Quick Answers

- **What is this?** VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black by vivosun
- **How much does it cost?** 941 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/263761209-vivosun-inline-duct-fan-4-inch-203-cfm-with-variable)

## Best For

- vivosun enthusiasts

## Why This Product

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

## Key Features

- • **Stepless Speed Control:** Customize airflow precisely to your environment’s needs for optimal plant health.
- • **Effortless Installation:** Quick-mount bracket and rope hangers make setup and maintenance a breeze.
- • **Whisper-Quiet Operation:** Keep your space peaceful with ultra-low 49 dB noise—no distractions, just fresh air.
- • **Powerful 345 m³/h Airflow:** Maximize your grow tent’s ventilation with industry-leading air movement.
- • **Versatile Ventilation Solution:** Perfect for grow tents, indoor gardens, and climate control in any space.

## Overview

The VIVOSUN Inline Duct Fan delivers robust 345 m³/h airflow at a whisper-quiet 49 dB, powered by a 68-watt motor with stepless speed control. Designed for easy installation and versatile use, it’s the go-to ventilation fan for professional indoor gardening and grow tents, ensuring optimal air circulation and climate control.

## Description

Product Description

Review: surprising quality for the price - I was expecting a cheap outfit and got a pleasant surprise with nice quality really quiet well working product. haven't had it long but seems like a keeper
Review: Works as described - Product works as described. I used it in my basement to direct marijuana smoke outside through some 6" dryer tubing, which is merged into my dryer exhaust. This keeps my basement and house smoke/odour-free. I cannot predict how long it will last with marijuana smoke residue blowing through the fan blades etc, but for the money, it is well worth it. The fan is quiet itself, but with the fan mounted to a joist in the basement ceiling, the floor above it rumbles like crazy. There is a dial to adjust the fan speed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | VIVOSUN |
| Colour | Black |
| Electric fan design | Blower |
| Power source | Corded Electric |
| Product dimensions | 23.6D x 24.6W x 10.2H centimetres |
| Style | Industrial |

## Product Details

- **Brand:** VIVOSUN
- **Colour:** Black
- **Electric fan design:** Blower
- **Mounting type:** Wall Mount
- **Power source:** Corded Electric
- **Product dimensions:** 23.6D x 24.6W x 10.2H centimetres
- **Recommended uses for product:** Air Circulation, Cooling
- **Room type:** Kitchen
- **Special feature:** Lightweight
- **Style:** Industrial

## Images

![VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black - Image 1](https://m.media-amazon.com/images/I/71c4dpGtQ3L.jpg)
![VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black - Image 2](https://m.media-amazon.com/images/I/61iV6ASFbWL.jpg)
![VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black - Image 3](https://m.media-amazon.com/images/I/71u8Jjy3fDL.jpg)
![VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black - Image 4](https://m.media-amazon.com/images/I/61C27kWlbDL.jpg)
![VIVOSUN Inline Duct Fan 4 Inch 203 CFM with Variable Speed Control for Grow Tent, Ventilation, Plant Tent, Indoor, Garden, Ventilation Fan, Z4 Pipe Fan, Black - Image 5](https://m.media-amazon.com/images/I/613I2LEQUWL.jpg)

## Questions & Answers

**Q: 50db seriously?**
A: Louder than I thought too.  Have a muffler and an enclosure made from 2" fiberglass ceiling tiles...back looking for something else.

**Q: How loud is this fan?**
A: Best value for the money...If you have ever lived anywhere that had A/C compressors outside of your window...it's as loud as that. Yes, what you here is more the whooshing from the air movement than the fan motor. Too help with that...I ran my exhaust tubing to the back of the tent...away from the door...helped a lot.. Also; there is no "hum" in this controller whatsoever. A problem I had with another brand. Hung motor using HD zip ties...stopping any potential vibration...This fan is also very strong...I have to run it as low as it goes...more than enough...kinda too much for the 2 X 4 X 6. As a kicker...Vivosun has been around for a long time and have always treated me right.BUY IT it you'll like it!....

**Q: Is it discret shipping?**
A: No discrete shipping. The box has Vivosun's name and inline fan all over the box. Amazon doesn't tell you that. They do on some things but this isn't one of them.

**Q: How many watts would this fan use running it at say half volume using the included controller?**
A: If the information for the electrical rating is correct as stated.  The fan at full speed draws 1.1 amps.  That would be 132 watts at full speed so one could conclude an approximate watt draw of 66 watts.  But electricity being what it is and the construction of the component parts I believe you could safely say 75-100 watts.  May I ask why you are concerned with the watts?

## Customer Reviews

### ⭐⭐⭐⭐⭐ surprising quality for the price
*by C***R on 27 August 2023*

I was expecting a cheap outfit and got a pleasant surprise with nice quality really quiet well working product. haven't had it long but seems like a keeper

### ⭐⭐⭐⭐⭐ Works as described
*by S***O on 26 November 2018*

Product works as described. I used it in my basement to direct marijuana smoke outside through some 6" dryer tubing, which is merged into my dryer exhaust. This keeps my basement and house smoke/odour-free. I cannot predict how long it will last with marijuana smoke residue blowing through the fan blades etc, but for the money, it is well worth it. The fan is quiet itself, but with the fan mounted to a joist in the basement ceiling, the floor above it rumbles like crazy. There is a dial to adjust the fan speed.

### ⭐⭐⭐⭐⭐ Works great. Using to remove cigarette smoke and co2 from propane heater in garage.
*by E***S on 11 December 2022*

Suction power is excellent. Noise is not bad. Can watch TV or listen to radio no problem with blower going.

## Frequently Bought Together

- VIVOSUN Z4 4 Inch Inline Duct Fan, 203 CFM Ventilation Fan with Variable Speed Controller for Grow Tent, Indoor Garden Ventilation, Black
- AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust
- VIVOSUN S3018 30"x18"x36" Grow Tent, High Reflective Mylar with Observation Window and Floor Tray for Hydroponics Indoor Plant for VS1000

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-06-20*