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MARS HYDRO

MARS HYDRO 4 Inch Inline Fan and Filter, with Temperature and Humidity Controller, and 25 Feet Ducting, Exhaust Fan for Grow Tents, Hydroponics

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 2
Order within 5 hours and 8 minutes
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Size: 4 Inch with Digital Controller


Features

  • CARBON FILTER FAN COMBO: 4-inch inline duct fan with digital 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.
  • TEMPERATURE AND HUMIDITY CONTROL- The digital controller with Intelligent temperature humidity controller programming, fan speed control, timer, and alarm functions. Monitor temperature and humidity in real-time, 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 2550 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.

Brand: MARS HYDRO


Material: Aluminum


Product Dimensions: 18"L x 14"W x 4"Th


Item Weight: 1.81 Kilograms


Product Dimensions: 18 x 14 x 14 inches


Item Weight: 3.99 pounds


Manufacturer: MARS HYDRO


Item model number: 4 Inch with Digital Controller


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 2

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

    • Works great so far
Size: 6 Inch with Digital Controller
Review Image by Kelly 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 Kelly
    • Great fan. No Bluetooth.
Size: 6 Inch with Digital Controller
Review Image by Sandi Sandi
Perfect fan for the application. Not the Bluetooth version that is controlled with the app. Perfect controller though to set heat and humidity ranges as well as fan speed.
Reviewed in the United States on September 29, 2023 by Sandi Sandi
    • An excellent option for your 3x3
Size: 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 Matt M
    • Operating instructions
Size: 6 Inch with Digital Controller
I have trouble with the control settings,fans etc.. Still don’t know, maybe that’s on me,but hope to figure out…the instructions could be better.. this is the 6 inch fan obviously, but I had a 4 in and it only lasted just under a year and had to buy another 4” in which i hope that’s not the case in this fan. Seems like it’s operating just great as far as what i did figure out at the present time! ... show more
Reviewed in the United States on May 11, 2023 by Randy H.
    • Job well done!
Size: 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 okay.
Size: 6 Inch with Digital Controller
Not loud, runs okay. Has 9 different fan speed settings but only has 1 speed.
Reviewed in the United States on July 8, 2021 by Beau Mckown
    • Problem solved
Size: 4 Inch with Digital Controller
*UPDATED REVIEW* After a couple of days of back and forth with customer service the issue I originally experienced has been resolved. The heat and humidity settings on this fan work AMAZING. The temperature inside my tent stays between 75°-80° and the humidity is between 70%-80%. This fan works great, was easy to install and is lightweight which is good if you have to install it alone. If you have any issues just contact Mars Hydro, it may take a few days but they will get back to you. ... show more
Reviewed in the United States on April 28, 2021 by chris towns
    • Probe stoped working…But!
Size: 4 Inch with Digital Controller
Review Image by Stosh Stosh
My temp probe just stoped working…it’s stuck on 00 ..n the rh is stuck on 50% I only had it about a month EDIT: They reached out immediately and are sending a new one..don’t let this review steer u away from not purchasing it’s still an awesome in-line fan and sometimes things happen, and if they do Mars hydro will replace it with no issue. I promise u! Best customer service ever, My 4 is now a 5 star ... show more
Reviewed in the United States on June 11, 2021 by Stosh Stosh

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