Mars Hydro iFresh 4" Fan & Filter Kit with iControl Grow Room Controller.

Smart, silent, and quietly in charge of everything.   

• EC Motor with Mixed Flow Design
• iControl Smart Grow Room Controller
• Free & Fast UK Delivery
• High-Efficiency RC412 Carbon Filter
  
• Phisper Quiet Operation
• Premium Black Combi Ducting
  
• Reversible Airflow Design
• Full App Automation via Mars Hydro iControl
• Complete Plug & Play Kit
• Hard Working Odour & Climate Control
• Incredible Value
  

Mars Hydro iFresh 4" Fan & Filter Kit with iControl.

Let’s address the elephant in the grow room.

Air.

Not the sort you casually breathe while making tea, but the kind that dictates whether your plants flourish like royalty or collapse in a sweaty, miserable heap. Get it wrong, and your Grow Tent turns into a tropical swamp. Get it right, and suddenly everything behaves as if it’s been given a firm but fair talking-to.

This is where the Mars Hydro iFresh 4" system arrives, wearing a lab coat, carrying a clipboard, and quietly taking control of the entire situation.

A Breath of iFresh Intelligence.

At its core, the Mars Hydro iFresh 4" is an inline extraction system. But calling it “just a fan” is like calling a modern jet “just a plane.” Technically accurate, but missing the point entirely.

This thing is built around a precision EC motor with PWM control, capable of delivering a rather impressive 205 cubic feet per minute of airflow. That’s 205 CFM of purposeful, controlled, and entirely intentional air movement.

Not a gentle waft. Not a half-hearted breeze. Proper airflow.

And yet, despite shifting that volume of air, it produces a noise level of just 26.8 decibels. That’s quieter than a whispered conversation. Quieter, in fact, than most people’s internal monologue when they realise they’ve forgotten to water their plants.

It doesn’t roar. It doesn’t hum aggressively. It simply gets on with the job in near silence, like a very efficient but slightly smug assistant.

The iControl Advantage. Where Brain Meets Brawn.

Now, this is where things take a turn into the future.

The Mars Hydro iFresh 4" isn’t just powerful. It’s clever. Thanks to the integrated iControl system, this entire setup can be monitored and controlled remotely via your phone.

Yes, really.

Through the Mars Hydro iControl app, you can adjust fan speed, monitor temperature and humidity, and set automated responses based on environmental conditions. It’s less “fan control” and more “climate command centre.”

Set your preferred temperature range, and if things start getting a bit tropical inside your Grow Tent, the system automatically ramps up airflow to bring everything back into line. Humidity creeping up? The iControl system notices before you do and quietly sorts it out.

You can even set loop timers and schedules, meaning your ventilation runs exactly when it should, without you having to remember anything at all.

It’s like having a very attentive gardener living inside your ducting.

Take a closer look at this awesome little machine here. 

Serious Odour Control. No Nonsense.

Of course, moving air is only half the story. The other half is what’s in it.

And if your plants happen to produce… let’s say “enthusiastic” aromas, you’ll need something that can deal with that properly. Enter the RC412 activated carbon filter.

This isn’t some token charcoal cylinder. It’s a high-efficiency filtration unit packed with premium-grade activated carbon, designed to trap and neutralise odours before they have a chance to escape your Grow Tent and announce themselves to the entire household.

The filter features a double-layer steel mesh construction with a generous open airflow design, ensuring that air passes through efficiently without sacrificing filtration performance.

In simple terms, it cleans the air properly. No half measures. No lingering hints. Just fresh, neutral output.

It’s the olfactory equivalent of a full reset.

Quiet Power. Proper Engineering.

What makes the Mars Hydro iFresh 4" particularly impressive is how balanced it feels.

Inline fans often fall into two categories. They’re either loud enough to double as white noise machines, or so underpowered they might as well be decorative. This, however, manages to sit perfectly in the middle.

The mixed-flow design ensures a steady, high-pressure airflow that can handle resistance from carbon filters and ducting without losing efficiency. Meanwhile, the EC motor maintains consistent performance across different speeds, without the usual drop-off you get with cheaper systems.

It’s smooth. It’s controlled. And it feels engineered rather than assembled.

Installation without the swearing.

Now, you might expect something this sophisticated to require a small engineering team and a week of your life to install.

Thankfully, that’s not the case.

The Mars Hydro iFresh 4" Fan & Filter Kit arrives as a complete package. You get the inline fan, the carbon filter, premium combi ducting, clamps, and all the necessary fittings to get everything up and running.

It’s plug-and-play in the best possible sense. Connect it, mount it, power it on, and you’re away. No head-scratching. No mysterious leftover parts. No existential crises halfway through assembly.

Even the iControl integration is straightforward, which is saying something in a world where “smart” devices often require the patience of a saint.

Designed For The Modern Grow Tent. 

Everything about this Mars Hydro system feels tailored for the modern Grow Tent setup. It’s compact enough for smaller spaces, yet powerful enough to maintain stable conditions even under demanding lighting setups.

Pair it with a 4-inch ventilation system and a properly configured Grow Tent, and you suddenly have full control over temperature, humidity, airflow, and odour.

Which, when you think about it, is basically everything that matters.

Precision Growing. Without The Headache.

The Mars Hydro iFresh 4" Fan & Filter Kit with iControl isn’t trying to reinvent ventilation. It’s simply refining it to the point where it becomes effortless.

It’s powerful without being noisy. Intelligent without being complicated. And comprehensive without being overwhelming.

Whether you’re a beginner looking for a reliable, all-in-one solution or a seasoned grower who’s tired of fiddling with manual controls and inconsistent airflow, this system delivers exactly what it promises.

Control. Consistency. Peace and quiet.

And in the unpredictable world of indoor growing, that’s not just useful.

It’s essential.

Mars Hydro iFresh 4” Extraction System Specs:

• Airflow: 205 CFM

• Noise Level: 26.8 dBA (Quiet as a whisper)

• Control: Smart App via iConnect or Manual Dimmer

• Motor: PWM-Controlled EC Motor

• Carbon Filter: High-Efficiency Activated Charcoal

Because when it comes to your grow tent, fresh air isn’t a luxury - it’s a necessity.