---
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: "¥94190"
currency: JPY
in_stock: true
reviews_count: 5
category: "Mars Hydro"
url: https://www.desertcart.jp/products/480945861-4inline-fan-carbon-filter-combo-4inline-fan-with-speed-controller
store_origin: JP
region: Japan
---

# <37 dB ultra-quiet operation 200 CFM max airflow Variable speed controller 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:** ¥94190
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your grow game with silent, powerful airflow and unbeatable odor control!

## 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?** ¥94190 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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

- • **Complete Ventilation Kit:** Includes 33 feet of flexible ducting and 3 sturdy clamps for fast, hassle-free installation and secure setup.
- • **Premium Odor Elimination:** Activated Australian virgin charcoal filter guarantees 100% odor removal, creating a fresh, contaminant-free environment.
- • **Precision Airflow Control:** Adjust fan speed seamlessly with the built-in variable speed controller for perfect ventilation tailored to your grow tent’s needs.
- • **Whisper-Quiet Performance:** Experience powerful airflow without the noise—operates below 37 dB, keeping your grow room peaceful and discreet.
- • **Trusted Durability & Support:** Robust plastic fan housing and blades ensure long-lasting performance backed by responsive 24-hour customer service.

## Overview

The MARS HYDRO 4" Inline Fan Carbon Filter Combo is a professional-grade ventilation system designed for 4x4 to 5x5 grow tents and hydroponic setups. Featuring a 4-inch inline duct fan with a variable speed controller, it delivers up to 200 CFM airflow at noise levels below 37 dB. The included carbon filter uses premium Australian virgin activated charcoal to eliminate odors and contaminants effectively. The kit comes complete with 33 feet of flexible ducting and 3 duct clamps for easy installation, making it a reliable, quiet, and efficient solution for indoor growers.

## Description

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

Review: Si può dimmerare, facile da montare e con carboni di ricambio, perfetta!
Review: I bought this to have better airflow in my Mars Hydro 3x3 grow tent. It has worked perfectly for at least a year now. I change the pre filter every month, and I've had no issues at all with it. Great construction, easy to install in my tent. This will be a quality purchase.

## 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 |
| Customer Reviews | 4.4 4.4 out of 5 stars (157) |
| Date First Available | 13 April 2021 |
| Item display height | 37 centimeters |
| Item display weight | 7.35 Kilograms |
| Item display width | 34 centimeters |
| Item model number | 4 inch inline fan kit |
| Manufacturer | MARS HYDRO |
| Material type | Activated Carbon |
| Part number | 4 inch inline fan kit |
| Product Dimensions | 43.18 x 35.56 x 33.02 cm; 6.38 kg |

## 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 G***L on 23 May 2024*

Si può dimmerare, facile da montare e con carboni di ricambio, perfetta!

### ⭐⭐⭐⭐⭐ Review
*by T***0 on 17 January 2025*

I bought this to have better airflow in my Mars Hydro 3x3 grow tent. It has worked perfectly for at least a year now. I change the pre filter every month, and I've had no issues at all with it. Great construction, easy to install in my tent. This will be a quality purchase.

### ⭐⭐⭐⭐⭐ Review
*by M***W on 15 March 2025*

I was really dumb and thought I had ordered the kit that came with the digital controller, so I was a bit sad and disappointed with myself. Still though, the product is good. I have no complaints with the quality of performance at all. Juts be careful you click the right thing and double check it at checkout.. I thought I had selected the right one but I must have stuffed something up along the way & didn't notice until it arrived

## 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 Japan*
*Store origin: JP*
*Last updated: 2026-03-17*