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REFURBISHED UNIT-Mars Hydro 6" (150mm) Inline Fan And Refillable Carbon Filter Combo With Speed Controller Original price was: 209,99€.Current price is: 145,99€.
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REFURBISHED UNIT – Mars Hydro 4" (100mm) Inline Duct Fan and Refillable Carbon Filter Combo with Thermostat Controller Original price was: 169,99€.Current price is: 118,99€.

REFURBISHED UNIT – 2025 Mars Hydro 4″ (100mm) iFresh Complete Fan Kit

Original price was: 219,99€.Current price is: 153,99€.

*Mars Hydro Certified Refurbished Products have undergone rigorous testing and assessment to ensure they meet quality standards, allowing you to make purchases at affordable prices. However, please note that Refurbished Products do not enjoy the same warranty policy as new products, once sold, returns or exchanges are not supported unless there are quality-related issues.

Product Specifications

  • Fan/Duct/Filter Size: 4 Inch
  • Airflow: 205CFM
  • Noise: 26dBA
  • Controller Type: Speed Controller & APP Smart Control*
  • Filter: Refillable carbon filter

The 2025 Mars Hydro 4″ iFresh Inline Duct Fan delivers 205CFM airflow capacity, featuring an expansion port that enables app-based climate control when paired with the iFresh MarsPro Add-On Pack. This integration creates a fully automated ventilation system that intelligently monitors and optimizes your grow space environmental data.

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Price for all: Original price was: 653,95€.Current price is: 621,25€. Save 32,70€
Description

2025 iFresh App Setup Video Guide

2 Videos

Package Includes:

 4-inch iFresh inline duct fan, carbon filter, duct, steel hoops *3, 5-gallon grow bags *4, 50x50cm new grow net, 6-inch clip fan, 6-inch scissors, glasses

IFRESH-high efficiency ec motor system
IFRESH-4 inch low noise
IFRESH-mixed flow design
mars hydro smart grow kits
IFRESH-standby mode
mars hydro inline duct fan ec motor
mars hydro 4 inch inline duct fan 26db low noise
mars hydro inline duct fan mixed flow design
mars hydro app control

Features

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The Mars Hydro iFresh 4-inch inline fan is equipped with a PWM-controlled EC motor, ensuring growers achieve efficient and precise fan speed control, ultimately optimizing performance. This motor offers a longer service life compared to AC motors, enhancing safety and operating at a remarkably low noise level. The Australian activated charcoal carbon filter efficiently purifies the air, removing odors and particulates for a healthier grow space.

With the capacity to deliver airflow up to 402 CFM, this fan kit provides precise environmental control. This significant airflow capacity ensures suitability for various grow tent sizes while enabling rapid temperature and humidity control.

The fan operates at a voltage range of AC 110-240V, incorporating energy-saving technology to ensure efficient and quiet operation. This design allows for effective ventilation without compromising energy efficiency. The fan operates at a whisper-quiet noise level, minimizing any disturbance. This feature is particularly beneficial for indoor setups in residential areas, allowing you to maintain a tranquil growing environment.

This fan kit supports upgradable smart control options, allowing you to constantly monitor VPD. Tailor the airflow and climate to meet the specific needs of your plants, fostering conditions that encourage robust growth and vitality.
Connect via iFresh Add-on Pack for flexible control, enabling easy remote adjustments and monitoring of the growth environment. Connect to the MarsPro APP for convenient remote control and access to smart features, including alarms, climate triggers, and loop timers. With just a few clicks on your smartphone, adjust fan speed, control on/off functions, and automate device schedules. It provides growers with effortless and precise management of their grow space.

Designed for durability and ease of installation, the kit includes flexible ducting and all necessary accessories. Its versatility makes it suitable for various grow tent sizes, from small personal setups to larger operations.

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Shipping
Shipping
package

We ship to most European countries:

Germany, Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,Netherlands,Norway, Romania, Poland, Portugal,  Slovakia, Slovenia, Spain, Sweden,Switzerland

We don't ship to:

  • Andorra, Iceland, Liechtenstein, Macedonia, Ukraine, Vatican City. San Marino
  • Island, like Palma, Corse, Jersey
  • Some limited areas

We don’t ship to above areas, thanks for your understanding. 

Order Confirmation

As soon as you place the order, we will send an order confirmation email to you. Normally most in-stock products are shipped within 1-3 business days of the order payment completed. For pro-order products, customers can choose to wait for shipment or refund

Order Shipment

  • We will send the tracking information to your email address once the item is shipped out, so you can track the shipment easily
  • We usually ship out by, by DHL, GLS, DPD or other couriers. After the order is processed, allow 5 to 15 business days for the product to reach you.
  • shipping time: Germany: 2-5 business days;  EU: 5-15 business days
  • Shipping fee calculate on check out page
  • For Ireland Buyer: will ship from Germany with EU plug

Change Order

If you have to change your order after you completed the payment, please contact us for the first time when you realize that. We will reply to you ASAP and try our best to correct it. Please understand that if the item has shipped from the warehouse,the changing maybe will not success,or there is time and cost increase.

Specification
Product Name Mars Hydro iFresh 4-Inch Smart Inline Duct Fan
Duct Size 4"
Dimensions 11.9x6.4x3.8 inch (30.2*16.3*9.7 cm)
Motor style EC motor
Speed Control Type PWM
Max Airflow 205 CFM (approximately 348m³/h)
Fan Speed 3000±10% RPM
Static Pressure 347±10% Pa
Operating Voltage 110~240 VAC
Frequency 50/60 Hz
Input Power 27 W±5%
Rated Current 0.4A（MAX.）
Operating Temperature -20~60℃ (-4~140℉)
Waterproof Rating IP44
MANUAL Download

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High-Efficiency LED, Lower Energy Cost
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To enable smart function, you need to buy Mars Hydro iConnectu, or iControl , or iHub Pro together (Will be shipped separately, for MarsPro App)
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iConnectu iControl iHub Pro
Timing Control √ √ √
Dimming Control √ √ √
PPFD Based Dimming × √ (Via PPFD sensor) √ (Via PPFD sensor)
Support More Devices × Works with MarsHydro RJ12 devices Controls up to 10 devices
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