- 1x 4" Duct Premium Carbon Filter
- 1x Washable Pre-Filter Cloth
AC Infinity 4" Duct Premium Carbon Filter
- 210 CFM maximum airflow rating for 4 inch ventilation systems
- 38mm thick bed of 1200 plus IAV Australian virgin charcoal
- Reversible flange design allows use as either an intake or exhaust filter
- 2-year manufacturer's warranty, excludes consumable components like the carbon
- View More Details
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Who This Is For
- You are upgrading your ventilation because your current filter leaves a lingering scent that neighbors can detect.
- You are choosing a reversible filter because your current setup wears out one end too fast and wastes charcoal.
What We Found
- The reversible flanges actually work to extend lifespan, giving you a fresh carbon bed by just flipping the ends.
- We noticed the steel mesh is much more rigid than generic filters, so it stays round under heavy suction.
What Users Say
- Buyers who switched from budget filters say odors disappeared completely even during the heaviest harvest weeks.
- Users who wash the pre-filter monthly say their fans do not have to work as hard to maintain target airflow.
AC Infinity 4" Duct Premium Carbon Filter
Tired of unwanted odors and airborne impurities compromising your indoor grow environment? The AC Infinity 4" Duct Premium Carbon Filter is your solution for maintaining clean, fresh air.
Engineered with a thick bed of premium Australian Virgin charcoal, this filter boasts a superior 1200+ IAV rating, effectively trapping and neutralizing even the most potent smells and chemical vapors without restricting airflow. Its versatile design allows for easy installation as either an intake or exhaust filter, making it a flexible and essential component for any serious grower's ventilation system. For a complete setup, pair it with an AC Infinity inline fan.
What's Included
Features
💎
Premium Australian Charcoal
Features a 38mm thick bed of 1200+ IAV grade virgin charcoal for maximum odor absorption.
🔄
Reversible Flanges
Flip the flanges to use the opposite end of the filter, effectively doubling its operational lifespan.
💨
High-Airflow Design
Heavy-duty steel mesh and premium carbon allow for a maximum airflow of 210 CFM.
🧼
Reusable Pre-Filter
Includes a machine-washable pre-filter cloth that captures dust and debris, protecting the carbon.
Specifications
| Specification | Value |
|---|---|
| Duct Opening Size | 4" |
| Total Dimensions | 13.35 x 6.97 in. (33.3 x 17.7 cm) |
| Flange Length | 1.46 in. (3.7 cm) |
| Flange Material | Aluminum |
| Flange Design | Reversible |
| Mesh Material | Galvanized Steel |
| Carbon Type | Australian Virgin RC412 |
| Carbon Grade | 1200+ IAV |
| Carbon Thickness | 38mm |
| Maximum Airflow | 210 CFM |
Support & Manuals
Warranty
This product is covered by a two-year manufacturer's warranty from AC Infinity. Please note, this warranty does not apply to consumable components like the carbon itself. All sales are final.
FAQs
How often should I replace my carbon filter?
The lifespan depends on usage, but with the reversible flanges, you can expect 18-24 months of effective odor control. Regularly check for diminished airflow or odor leakage.
Can I use this filter with a fan from another brand?
Yes, this filter is compatible with any 4" inline duct fan. For optimal performance and smart control, we recommend pairing it with an AC Infinity CLOUDLINE T4.
What is the benefit of Australian Virgin charcoal?
Australian Virgin charcoal is considered one of the highest quality carbons for air filtration. It has a higher absorption capacity (IAV rating) and lower ash content, meaning it traps more odor molecules and lasts longer.
How do I wash the pre-filter?
Simply remove the cloth pre-filter from the main body and machine wash it on a gentle cycle with cold water. Allow it to air dry completely before reinstalling.
Is this filter easy to install?
Absolutely. It's designed for straightforward installation. You can connect it to your ducting as either an intake filter (pulling air through) or an exhaust filter (pushing air through). For more tips, check out our guide on AC Infinity air filter kits.
What does the 210 CFM rating mean?
CFM stands for Cubic Feet per Minute. This 210 CFM rating indicates the maximum volume of air the filter can process per minute without significant restriction, making it suitable for small to medium-sized grow tents. A great match for our 2'x4' grow tents.
Happy To Help
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
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