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MARS HYDRO

MARS HYDRO 4 Inch 205CFM Inline Fan with Speed Controller, Carbon Filter, and 25 Feet of Ducting Combo, Ventilation System for Grow Tent, Hydroponics

    • Based on 335 reviews
Condition: New
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Availability: 14 left in stock
Fulfilled by Amazon
Arrives Wednesday, May 15
Order within 12 hours and 12 minutes
Available payment plans shown during checkout

Color: Black


Style: 4 Inch with Speed Controller


Features

  • CARBON FILTER FAN COMBO - 4-inch inline duct fan with speed controller, 4-inch carbon filter, 25ft length flex ducting, 3 duct clamps. MARS HYDRO's complete ventilation system provides adequate ventilation and prevents odors in your tent or grow room.
  • VARIABLE SPEED CONTROL- The speed controller can vary the fan speed and air intake according to the needs of the growing environment, ensuring optimal growing conditions.
  • POWERFUL INLINE FAN: MARS HYDRO inline duct fan housing is made of durable plastic, and the fan blades have a mixed flow design to provide active air to your growing space, the fan runs at 2800 RPM and provides 205CFM of airflow.
  • FLEX DUCTING AND CLAMPS - Flexible ducting made of high-quality double-layer Aluminum film, prevent the duct from tearing, and prolong the service life. 360-degree arbitrary bending, smooth exhaust, easy to install. Includes 3 duct clamps.
  • SUPERIOR ACTIVATED CARBON - Made of imported 1050+ Virgin Australian activated charcoal, delivering 100% filtered airflow, which provides better absorption and removes odor efficiently. Includes a machine washable pre-filter cloth to prevent carbon residue.

Product Dimensions: 17 x 14 x 13 inches


Item Weight: 14 pounds


Manufacturer: MARS HYDRO


Item model number: 4 inch inline fan kit


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Very easy to assemble
Color: Black Style: 4 Inch with Digital Controller
Nothing
Reviewed in the United States on September 25, 2022 by Maria Hereth
    • Amazing customer service
Color: Black Style: 6 Inch with Speed Controller
When I received the fan I had an issue with it being pretty loud, sounded like it wanted to take flight.. I contacted customer service and I was greeted with nothing but respect and professionalism, right away I was offered a discount on the product or for them to send me a replacement one free of cost.. I was sent my tracking number and the new one is on its way! I own many Mars hydro products and after this I will stick with them, you don't get customer service like this from many other companies now days! Amazing people and products! I will post an update when the new one comes! ... show more
Reviewed in the United States on June 10, 2022 by Bahnzilla
    • Great Product!
Color: Black Style: 6 Inch with Speed Controller
I like this fan because it is very easy to use and the speed controller has a cord long enough to be easily mounted on the wall. I also purchased a 6 inch to 4 inch splitter to put on this fan and now I use it to feed fresh air to 2 of my Mars Hydro 4x4x80 Grow Tents. These guys have solid products and top notch customer service. Definitely would recommend to my friends, and I do, and I would make these purchases again. Thanks Mars!!!! ... show more
Reviewed in the United States on March 13, 2022 by Amazon Customer
    • Job well done!
Color: Black Style: 4 Inch with Digital Controller
This unit does exactly what I needed it to do. I have a 3' x 2'.5'', 4' high grow room and it keep the smell away and the temps where I need them to be. I have my unit set to turn on automatically if temp hits 75 or humidity goes above 50%. Noise is Okay, but you can't expect anything quieter when the fan needs to adjust when your grow space adjusts. I do wish the 'min temps' setting would be programmed to STOP the units if temps or humidity fall below a certain point, but it does not work that way. That is probably the only downside, it is one or the other. ... show more
Reviewed in the United States on January 1, 2022 by Indigo
    • Works great so far
Color: Black Style: 6 Inch with Digital Controller
Review Image by Kelly
I've only been testing this fan/filter for a few weeks, but so far I'm very happy. It moves a ton of air in my 4x4 and the fan (which I installed inside the tent) is decently quiet when cranked up to max settings. It was very easy to assemble and install, and I have no experience with these kinds of things. I did opt to seal the ducting with aluminum foil tape in addition to the hose clamps -- the tape needs to be bought separately. That said, I don't know if that's even necessary. The smart monitor is REALLY nifty. Tons of settings to automatically adjust for different scenarios when certain conditions are met. When I thought I had a problem with the monitor (it was actually just me being dumb though) customer support responded to my question in a few hours. Really can't complain! I'll try to update a year or so down the road and let you know how well it ages. In the meantime though, I'm a happy camper.. ... show more
Reviewed in the United States on April 30, 2021 by Kelly
    • An excellent option for your 3x3
Color: Black Style: 4 Inch with Digital Controller
This is an excellent little in-line fan that seems to pack some power and would be ideal for a 3x3 space. It has a great rate of air exchange that can be turned up or down on their digital controller where you can also set alarms for high/low temps and humidity which can be extremely useful for monitoring purposes- it also comes with the appropriate size carbon filter, ducting, and ducting clamps so you can get everything set up right away! Super convenient and easy to use, an excellent option for your space! ... show more
Reviewed in the United States on December 18, 2021 by Amazon Customer
    • An economically priced filter fan unit that works great!
Color: Black Style: 4 Inch with Digital Controller
The 4" Mars Hydro inline filter/fan unit works very well in my 2.5 x 2.5 tent. It creates good airflow and has the basic features such as temp and humidity triggers. And if you do have problems, Mars Hydro provides excellent customer service
Reviewed in the United States on September 28, 2021 by Amazon Customer
    • Its noisy
Color: Black Style: 6 Inch with Speed Controller
So its a fan, filter, ducting combo. Its rather noisy and echoes in the filter and thru the ducting. It took a couple emails back and fourth but the seller did end up refunding me the value of the fan in the event of a failure. The noise comes from the fan blades ticking against the inner walls of the fan shroud which fould eventually cause the blades to potentially fail. The fan and filter do the job, you wouldnt know I was drying my plants in the room just next to the living room so long as the door is closed. I would suggest getting another set of clamps for the ducting. Also if youre planning on mounting the fan to anything you have to REMOVE the fan from the housing and mount the housing and then reinstall the fan ... show more
Reviewed in the United States on August 21, 2021 by shawn badger

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