AC Infinity Air Carbon Filter 4" with Premium Australian Virgin Charcoal, for Inline Duct Fan, Odor Control, Hydroponics, Grow Rooms
Condition: New
Buy Now, Pay Later
As low as
$8.33
/ mo
Learn more
- – 6-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Feb 25
Recently Viewed
Size: 4-Inch
Features
- 4 inline filter designed to block odors and chemicals from escaping grow tents and hydroponics rooms.
- Features premium-grade Australian charcoal with greater adsorption and longer life rating.
- Powder-coated gunmetal finish is constructed for high durability and rust resistance to high-level humidity.
- Built with aluminum flanges and a galvanized steel mesh; includes two straps, two rope clips, and two pre-filters.
- Duct Opening: 4 | Length: 12" | Airflow Rating: 210 CFM | Carbon: Australian RC412 at 1200+ IAV | Thickness: 38mm
Brand: AC Infinity
Material: Alloy Steel, Aluminum
Product Dimensions: 12"L x 12"W x 1.5"Th
Compatible Devices: Inline Duct Fan, HVAC Systems, Ventilation Devices
Item Weight: 5.5 Pounds
UPC:
Air Filter Construction: Solid
Manufacturer: AC Infinity
Product Grade: new
Common Applications: Industrial
Product Dimensions: 3.94 x 3.94 x 9.84 inches
Item Weight: 5.47 pounds
Item model number: AC-DCF4
Is Discontinued By Manufacturer: No
Date First Available: August 23, 2018
Manufacturer: AC Infinity
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Feb 25
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 4-Inch
AC Infinity just does a nicer job on their stuff. Any old carbon filter does the job. AC Infinity puts a couple loops on the case because they know you'll be using a hook. Nice work!
Reviewed in the United States on December 29, 2025 by Ty
Size: 6-Inch
The AC Infinity Air Carbon Filter is a game-changer for anyone looking to improve the air quality in their home or workspace. This carbon filter is a must-have for anyone who wants to eliminate odors, allergens, and pollutants from their indoor environment. First and foremost, I was impressed by the cutting-edge technology used in this filter. The activated carbon filter effectively removes odors, smoke, and harmful chemicals from the air, leaving behind a clean and fresh-smelling environment. I noticed a significant improvement in the air quality within just a few hours of installing the filter. Another standout feature of this filter is its versatility. It is compatible with a wide range of AC Infinity products, making it easy to integrate into your existing air purifier or ventilation system. The filter is also easy to install and replace, with convenient features like a built-in flange and pre-filter wrapping. In terms of durability, the AC Infinity Air Carbon Filter is top-notch. The filter is constructed with high-quality materials that are built to last. The carbon layer is thick and dense, ensuring long-lasting performance and effective filtration. Overall, I would highly recommend the AC Infinity Air Carbon Filter to anyone in need of a reliable and high-performing air purifier. It is a great investment for anyone looking to improve their indoor air quality and create a healthier living environment.
...
show more
Reviewed in the United States on February 10, 2024 by Pebbles
Size: 4-Inch
Works great if you have dogs or smoke
Reviewed in the United States on January 5, 2026 by Trent Bad Rider
Size: 8-Inch
My whole house was loud from the moment you got 20 ft from the door. Installed this filter, aired out the house. The smell was gone within an hour or two and hasn't returned. Pretty impressive considering I just harvested so the smell would be at its peak. I love how they put hooks for easier installation and a lot lighter than the previous one I bought and paid more for. Hoping to get at least a year out of it minimum, will report back.
...
show more
Reviewed in the United States on December 21, 2025 by Aric V Aric V
Size: 4-Inch
I have what is essentially a grow tent, except I don't grow anything in it and sleep in it instead. Because the air in there automatically gets thick n' clammy (like a good chowder), I bought an AC Infinity.. uhh.. T series? S series? The one that HAS the electronic control stuff-- inline fan. I also bought some of their ducting, and then used some generic 4" bits and pieces to make stuff work to pump fresh are into my sleeping pod. However, I noticed that I was waking up, kind of often, with a pretty bad smell in my nose. Sometimes, I'd know what it was, other times not, but I bought one of these filters for the intake side, and I'm able to draw in air from my room and give it a nice fresh non-scent. It hasn't messed with airflow too, too terribly, and I am still able to pick up air conditioned air when I want it by placing the filter at the outflowing vent of my AC. The first day or two, the non-smell in my room (basically, a smell unto itself-- almost sweet) was intoxicating. I also noticed-- as dumb as this will sound-- that the air felt smooth, as though it was almost too easy to breathe. Long story short, I'm very pleased, continue to be impressed with AC Infinity (I have a few of their hobby/kit fans, also) and find all their stuff well worth the money.
...
show more
Reviewed in the United States on February 8, 2022 by Fletcher
Size: 8-Inch
Massive. I bought it with a matching ACI exhaust fan just to scrub the lung room when in there with the tent open. Ended up placing it inside the tent to help more from leakage. It has helped some but not nearly what I expected from nearly 800cfs and the size which comes with extra expense. It's been running a few weeks now so not sure on longevity. I will say my ACI carbon filters haven't lasted as long as I expected. The 6" that is feeding from tent to attic stopped filtering well after only 3 months in the same grow this is in now. I've had better lifespan from cheaper brands but like the build quality and ACI ecosystem (for most things). I'll eventually crack it open to see I can replace the carbon or have to grab a made to be refilled one.
...
show more
Reviewed in the United States on April 27, 2025 by A Person
Size: 6-Inch
Extremely excellent product!!! Easy to install. Airflow is great .
Reviewed in the United States on December 27, 2025 by Shannon Dobson
Size: 6-Inch
Wow. I should have gone with AC Infinity brand gear from the get-go. I'm kicking myself for not buying AC Infinity initially. This carbon filter is real nice. Especially if you're used to the cheap Amazon brand ones, like iPower. Not only is it made ALOT nicer, I think it works better too. I don't know about how long it'll last, yet, but if I had to make a guess, I'll still be using this carbon filter in late 2026, if not longer than that. Arrived in good shape and super fast too. I cannot recommend AC Infinity brand stuff enough. If you're spending your money on the lower cost brands, you'll actually save money by only having to buy once, instead of multiple times in the same time period. So, plz, stop wasting your money on lower cost brands, like iPower. I promise you that you'll wind up spending less, over time, buying AC Infinity.
...
show more
Reviewed in the United States on July 6, 2025 by Eric M.