

🌬️ Breathe Clean, Grow Bold — The Ultimate Odor Control Upgrade
The MARS HYDRO 4 Inch Carbon Filter features premium 1050+ Virgin Australian activated charcoal for superior odor absorption, supports 210 CFM airflow for efficient ventilation, and includes a durable, machine washable pre-filter. Designed for versatile inline fan use in grow tents, hydroponics, and indoor spaces, it offers reliable, long-lasting odor control with easy maintenance.






























































| ASIN | B09QBS8NLG |
| Batteries required | No |
| Best Sellers Rank | #65,987 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #32 in Hydroponic Ventilation Equipment |
| Customer Reviews | 4.7 4.7 out of 5 stars (115) |
| Item Weight | 6 pounds |
| Item model number | 4 carbonfilter |
| Manufacturer | MARS HYDRO |
| Product Dimensions | 11 x 7 x 7 inches |
J**L
Clean air
I purchased this to scrub there out take air from my grow tent! The scrubber does a great job! I’m only a month in so we will see how long it holds up for
R**M
Good filter
Perfect fit for my 4x4 tent. Has been used for 4 months and still scrubbing all smells.
R**A
Quality Filter
Going on a year now, and just thinking it might need replacing. It’s been a solid product. Still going, but the flower garden could use a fresh one for good measure.
M**S
Filter
It works and it's quite
T**S
Works great!
This filter works great!
J**N
Works well and fits perfect with 6” inline fan.
Make sure you already have belts if you plan to hang it.
T**N
No problems
No problems detected
M**N
MARS
B**Y
Just as described. A great brand that gets the job done.
D**P
Erfüllt seinen Zweck.
S**N
It feels very premium and good quality compared with other generic ones ive tried in the past. I will update this review later on what it performs like. 👍
D**D
Excellent
A**.
Really good fan best 4 inch I’ve ever used really quiet..good value for money you get what you pay for..great whilst using app and will automatically adjust for your desired parameters of temp and humidity.. but the real jewel is the control unit the information it provides is priceless Noise levels are good only when get to really high levels like 9-10 that it gets noticeable
Trustpilot
5 days ago
1 month ago