What are the actual dimensions of the 6" filter?

Hi, Thanks for your concern. Below is the size information for MARS HYDRO 6 inch carbon filter: Opening: 6", Length: 8.27" Hope this can help you. Thanks

How often do you recommend replacing this filter?

I would just go with a 6 inch carbon filter that way it pulls out more air if a 6-in can fit than a 4 in and if you get the 6 in replace it maybe once a year depending on how much you use it and how hard you're running it

Does this 4 inch filter hook up to a 4” duct ?

Hello, Thanks for contacting us. Yes, you can use the MARS HYDRO 4 inch carbon filter with 4 inch ducting and inline fans. Hope this helps you, please feel free to contact us with any questions. Best Wishes,

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MARS HYDRO 4 Inch Carbon Filter & Pre-Filter for Inline Fan,Grow Tent

MARS HYDRO 4 Inch Carbon Filter & Pre-Filter for Inline Fan,Grow Tent

Product ID: 487232942

Details

Brand
MARS HYDRO
Compatible Devices
Air Cleaner
Item Weight
2.72 kg
Material
Activated
Number of Items
2

🧼Machine washable pre-filter cloth

🌬️210 CFM airflow rating

🛡️1050+ Virgin Australian activated charcoal

Description

🌿 Breathe Clean, Grow Bold — The Ultimate Carbon Filter for the Modern Grower

COMPACT POWERHOUSE - Sleek 4" flange x 12" length design delivers powerful 210 CFM airflow without sacrificing space or style.
ODOR CONTROL MASTERY - Effortlessly neutralizes odors from grow tents, pets, smoke, and chemicals—keeping your space fresh and professional.
BUILT TO LAST CLEAN - Heavy-duty aluminum and galvanized steel mesh frame with a reusable, machine washable pre-filter cloth for long-term performance.
DUAL MODE VERSATILITY - Seamlessly pairs with 4-inch inline fans for both intake and exhaust setups, adapting to your unique grow environment.
PURE AIR ZERO COMPROMISE - Premium 1050+ Virgin Australian activated charcoal ensures 100% filtered airflow for unmatched odor elimination.

The MARS HYDRO 4 Inch Carbon Filter & Pre-Filter combines premium 1050+ Virgin Australian activated charcoal with a durable aluminum and steel frame to deliver 210 CFM of fully filtered airflow. Designed for grow tents and indoor environments, it effectively eliminates odors from plants, pets, and smoke. Its machine washable pre-filter cloth extends filter life, while compatibility with 4-inch inline fans offers flexible intake or exhaust configurations. Perfect for professionals seeking clean air and odor control in compact spaces.

Specifications

ASIN	B09QBS8NLG
Best Sellers Rank	#138,060 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,142 in Water Purifier Accessories
Brand Name	MARS HYDRO
Compatible Devices	Air Cleaner
Country of Publication	USA
Customer Reviews	4.6 4.6 out of 5 stars (144)
Item Highlight	Air Filter Odor Control with Australian Virgin Charcoal,Reversible Flange,For Inline Duct/Exhaust Fan
Item Weight	2.72 kg
Manufacturer	MARS HYDRO
Manufacturer Part Number	4 inch carbonfilter
Material Type	Activated Charcoal, Aluminum, Steel
Model Number	4 carbonfilter
Number of Items	2
Number of Packs	1
Product Grade	new
Unit Count	1.0 Count

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