---
product_id: 397054091
title: "MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics"
brand: "mars hydro"
price: "€ 305.62"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mars Hydro"
url: https://www.desertcart.it/products/397054091-mars-hydro-4-inch-inline-fan-carbon-filter-ducting-kit
store_origin: IT
region: Italy
---

# 205 CFM airflow 28 dB ultra-quiet Variable speed control MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics

**Brand:** mars hydro
**Price:** € 305.62
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your grow game with stealthy airflow and total control!

## Quick Answers

- **What is this?** MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics by mars hydro
- **How much does it cost?** € 305.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/397054091-mars-hydro-4-inch-inline-fan-carbon-filter-ducting-kit)

## Best For

- mars hydro enthusiasts

## Why This Product

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

## Key Features

- • **Whisper-Quiet Power:** Operate your grow tent stealthily with just 28 dB noise—like a gentle breeze, not a jet engine.
- • **Robust & Reliable Build:** Durable plastic housing with dual ball bearings ensures long-lasting, smooth operation at 3000 RPM.
- • **Optimized for Hydroponics:** Specialized carbon filter kit designed to boost heating, cooling, and air circulation in hydroponic grow tents.
- • **Precision Airflow Control:** Adjust fan speed seamlessly with the variable controller for optimal ventilation tailored to your plants’ needs.
- • **Effortless Setup & Maintenance:** Quick-lock duct ends and a 4.9 ft cord make installation and upkeep hassle-free—get growing faster.

## Overview

The MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit delivers powerful 205 CFM airflow with whisper-quiet 28 dB operation. Featuring a variable speed controller and durable dual ball bearing design, it’s engineered for efficient ventilation in hydroponic grow tents. Easy to install with quick-lock duct ends and a long power cord, this kit optimizes heating, cooling, and air circulation to create the perfect growth environment.

## Description

Product Description Mars Hydro Ventilation System 4''APP/Knob fan kit 6''APP/Knob fan kit 4''Digital fan kit 6''Digital fan kit iconnet&RJ control

Review: Excellent kit, great value - Really happy with this setup. Everything works well straight out of the box and the build quality feels solid throughout. The speed controller is a great addition, being able to dial in exactly how much suction you need makes a big difference rather than being stuck at one fixed speed. Airflow is excellent and it runs quietly which was important for me. The price point for what you get is really good too. One thing worth knowing is that there is an optional Bluetooth controller available separately that pairs with a phone app, which is a nice touch if you want to monitor and adjust things remotely without having to be right next to the unit. Would definitely recommend.
Review: Excellent - excellent fan very quiet and stealthy much better than some of the jet engines out there. filter still good after three grows.

## Features

- Grow Tent Fan: Designed to ventilate hydroponic grow rooms, transfer heating/cooling, circulate air, and cool AV closets.
- Effective Ventilation: Variable speed controller for easy fan speed adjustment. Optimal ventilation for your planting.
- Low Noise Level: Durable plastic fan housing and blades for extremely low noise(28 dB), create a truly quiet growth environment.
- Easy Installation: Removable duct ends with locking tabs for quick removal and easy maintenance and a cord length of 4.9 feet for hassle free setup.
- Ventilation exhaust fan size: 4” | Dimensions: 11.9 x 8 x 7.4 in. | Weight: 4 lb. | Airflow: 205 CFM | Noise: 28 dB | Bearings: Dual Ball. Any questions , please feel free to contact us, MARS HYDRO 24 hours at your service!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08RZ3D69D |
| Air Flow Capacity | 205 Cubic Feet Per Minute |
| Best Sellers Rank | 34,506 in Garden ( See Top 100 in Garden ) 20 in Hydroponic Ventilation Equipment |
| Brand | MARS HYDRO |
| Brand Name | MARS HYDRO |
| Collection Name | Inline Fans |
| Colour | Black |
| Control Method | App |
| Country of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 163 Reviews |
| Electric Fan Design | Exhaust Fan |
| Electric fan design | Exhaust Fan |
| Finish Type | Powder Coated |
| Included Components | Straps |
| Indoor Outdoor Usage | Indoor |
| Installation Type | plug-and-play |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 30.2D x 19.4W x 19.1H centimetres |
| Item Weight | 6.38 Kilograms |
| Manufacturer | MARS HYDRO |
| Material | Plastic, charcoal, aluminium foil |
| Model Name | 4 inch inline fan kit |
| Model Number | 4 inch inline fan kit |
| Mounting Type | Duct Mount |
| Noise Level | 28 Decibels |
| Number of Power Levels | 3 |
| Part Number | 4 inch inline fan kit |
| Product dimensions | 30.2D x 19.4W x 19.1H centimetres |
| Recommended Uses For Product | Exhausting, Ventilating |
| Size | 4 inch APP/Knob control |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | Variable Speed Controller, Specialized for Grow Tents and Hydroponics |
| Special feature | Variable Speed Controller, Specialized for Grow Tents and Hydroponics |
| Speed | 3000 RPM |
| Standby Power Shutoff | Highly efficient |
| Style | Carbon Filter |
| Voltage | 12 Volts |
| Wattage | 40 watts |

## Product Details

- **Brand:** MARS HYDRO
- **Colour:** Black
- **Electric fan design:** Exhaust Fan
- **Material:** Plastic, charcoal, aluminium foil
- **Mounting type:** Duct Mount
- **Noise level:** 28 Decibels
- **Product dimensions:** 30.2D x 19.4W x 19.1H centimetres
- **Recommended uses for product:** Exhausting, Ventilating
- **Special feature:** Variable Speed Controller, Specialized for Grow Tents and Hydroponics
- **Style:** Carbon Filter

## Images

![MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics - Image 1](https://m.media-amazon.com/images/I/71I5FX4e8JL.jpg)
![MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics - Image 2](https://m.media-amazon.com/images/I/7130KG6ejSL.jpg)
![MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics - Image 3](https://m.media-amazon.com/images/I/61L41YD9s4L.jpg)
![MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics - Image 4](https://m.media-amazon.com/images/I/71uB4YDhmwL.jpg)
![MARS HYDRO 4 Inch Inline Fan Carbon Filter Ducting Kit, Exhaust Fan with Speed Controller Hydroponics Grow Tent Ventilation Kit for Heating Cooling Booster, Grow Tents, Hydroponics - Image 5](https://m.media-amazon.com/images/I/71w1ZbjSLbL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does it come with an UK Plug?**
A: Yes, it is UK Plug.

**Q: Are other MARS products also UK plugs?**
A: Yes, all MARS HYDRO products are UK plugs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent kit, great value
*by M***H on 10 April 2026*

Really happy with this setup. Everything works well straight out of the box and the build quality feels solid throughout. The speed controller is a great addition, being able to dial in exactly how much suction you need makes a big difference rather than being stuck at one fixed speed. Airflow is excellent and it runs quietly which was important for me. The price point for what you get is really good too. One thing worth knowing is that there is an optional Bluetooth controller available separately that pairs with a phone app, which is a nice touch if you want to monitor and adjust things remotely without having to be right next to the unit. Would definitely recommend.

### ⭐⭐⭐⭐⭐ Excellent
*by C***Y on 6 April 2025*

excellent fan very quiet and stealthy much better than some of the jet engines out there. filter still good after three grows.

### ⭐⭐⭐ Missing straps
*by D***L on 22 November 2025*

No Velcro straps. It works

## Frequently Bought Together

- MARS HYDRO 4 Inch Inline Fan Combo with Variable Speed Controller, Quiet Cooling Booster Fan,205 CFM Exhaust Fan for Grow Tents and Hydroponics
- MARS HYDRO TS1000 150W LED Grow Light for Indoor Plants, with Patented Reflector, 5 Levels Dimmable Lights Daisy Chain Full Spectrum Growing Lamps for Seedlings Veg Bloom in 2x2/3x3 Grow Tent

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-06-15*