---
product_id: 480945861
title: "4\"Inline Fan Carbon Filter Combo- 4\"Inline Fan with Speed Controller,4 Inch Carbon Filter, 33 Feet Ducting and 3 Duct Clamps Ventilation System for 4x4 5x5 Grow Tent, Hydroponics, Grow Room"
brand: "mars hydro"
price: "2801 Lei"
currency: RON
in_stock: true
reviews_count: 5
category: "Mars Hydro"
url: https://www.desertcart.ro/products/480945861-4inline-fan-carbon-filter-combo-4inline-fan-with-speed-controller
store_origin: RO
region: Romania
---

# 40W energy-efficient motor <37 dB ultra-quiet operation 200 CFM max airflow 4"Inline Fan Carbon Filter Combo- 4"Inline Fan with Speed Controller,4 Inch Carbon Filter, 33 Feet Ducting and 3 Duct Clamps Ventilation System for 4x4 5x5 Grow Tent, Hydroponics, Grow Room

**Brand:** mars hydro
**Price:** 2801 Lei
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate your grow game with stealthy airflow and zero odor—because your plants deserve the best.

## Quick Answers

- **What is this?** 4"Inline Fan Carbon Filter Combo- 4"Inline Fan with Speed Controller,4 Inch Carbon Filter, 33 Feet Ducting and 3 Duct Clamps Ventilation System for 4x4 5x5 Grow Tent, Hydroponics, Grow Room by mars hydro
- **How much does it cost?** 2801 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/480945861-4inline-fan-carbon-filter-combo-4inline-fan-with-speed-controller)

## 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

- • **Plug & Play Setup:** Includes 33ft ducting and 3 clamps for fast, hassle-free installation in 4x4 or 5x5 grow tents.
- • **Odor-Free Sanctuary:** Premium Australian virgin activated carbon filter eliminates pungent smells and airborne contaminants with 100% filtered airflow.
- • **Energy Smart & Reliable:** 40W motor balances powerful ventilation with low energy consumption, backed by responsive 24-hour customer support.
- • **Precision Climate Control:** Variable speed controller lets you dial in perfect airflow for any grow environment.
- • **Whisper-Quiet Performance:** Engineered plastic fan blades and housing keep noise below 37 dB—grow in peace without disruption.

## Overview

The MARS HYDRO 4" Inline Fan Carbon Filter Combo is a complete ventilation system designed for hydroponics and grow tents up to 5x5 ft. Featuring a powerful yet quiet 200 CFM fan with variable speed control, a high-grade Australian virgin activated carbon filter for superior odor elimination, and 33 feet of flexible ducting with clamps, this kit ensures optimal airflow and air purity. Its energy-efficient 40W motor operates below 37 dB, making it ideal for discreet indoor growing environments.

## Description

MARS HYDRO 4 Inch Inline Duct Fan 4” Ventilation Exhaust Fan with Speed Controller for Grow Tents, Heating Cooling Booster, Hydroponics

Review: Au top et silencieux
Review: Ich hatte mit dem Kohlefilter Probleme, da er die Luft nicht ausreichend gefiltert hat. Nach dem Kontakt mit Alice vom Kundenservice & meiner Schilderung des Problems wurde mir ein neuer Kohlefilter zugesendet. Dieser Arbeitet zuverlässig & ich kann das Produkt mit gutem gewissen weiterempfehlen.

## Features

- Package Include: 4"inline duct fan with speed controller, 4"carbon filter, 33ft length flex ducting,3 Duct Clamps
- 4 Inch Inline Duct Fan with Variable speed controller for easy fan speed adjustment.Durable plastic fan housing and blades for extremely low noise(<37 dB).Powerful Motor is more energy efficiency and quieter operation.
- Superior carbon Made of imported Virgin Australian activated charcoal, delivering 100% filtered airflow, eliminate some of the most undesirable odors, pungent smell and particulates from indoor grow tent, hydroponics grow room.
- Effective & Quiet Ventlation Kit: Excellent odor control,4" Inline duct Fan is rated for max 200CFM. With 3 settings of fan speed controller, noise min to 37dB. Filter with built-in Australian virgin charcoal granules which enables to absorb exponentially more contaminants and allergens than traditional carbon.
- Perfect Growth Partner: Fast assembly,work as a cost-effective,convenient ventilation combo.Satisfaction Guarantee: any problems will be responded in 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08RZ3D69D |
| Brand | MARS HYDRO |
| Color | Black |
| Compatible Models | IROOR |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,050) |
| Date First Available | 13 April 2021 |
| Item Weight | 6.38 Kilograms |
| Material | Activated Carbon |
| Model Number | 4 inch inline fan kit |
| Noise Level | 28 Decibels |
| Power / Wattage | 40 watts |
| Product Dimensions | 43.18 x 35.56 x 33.02 cm; 6.38 kg |
| Special Features | Variable speed control and carbon filter |
| Voltage | 12 Volts |

## Product Details

- **Brand:** MARS HYDRO
- **Colour:** Black
- **Electric fan design:** Exhaust Fan
- **Material:** Activated Carbon
- **Mounting type:** Duct Mount
- **Noise level:** 28 Decibels
- **Product dimensions:** 30.2D x 19.4W x 19.1H centimeters
- **Special features:** Variable speed control and carbon filter
- **Style:** 4 Inch with Speed Controller
- **Wattage:** 40 watts

## Images

![4"Inline Fan Carbon Filter Combo- 4"Inline Fan with Speed Controller,4 Inch Carbon Filter, 33 Feet Ducting and 3 Duct Clamps Ventilation System for 4x4 5x5 Grow Tent, Hydroponics, Grow Room - Image 1](https://m.media-amazon.com/images/I/71I5FX4e8JL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by T***A on 28 December 2023*

Au top et silencieux

### ⭐⭐⭐⭐⭐ Review
*by V***R on 3 December 2024*

Ich hatte mit dem Kohlefilter Probleme, da er die Luft nicht ausreichend gefiltert hat. Nach dem Kontakt mit Alice vom Kundenservice & meiner Schilderung des Problems wurde mir ein neuer Kohlefilter zugesendet. Dieser Arbeitet zuverlässig & ich kann das Produkt mit gutem gewissen weiterempfehlen.

### ⭐⭐⭐⭐⭐ Review
*by L***M on 30 September 2025*

Can’t fault it. Easy to use and setup. I’ve had mine on 24/7 for 4 month now. Still no issues

## 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 Romania*
*Store origin: RO*
*Last updated: 2026-01-31*