- CLOUDLINE LITE 4” Inline Duct Fan
- 10-Speed Fan Controller
- 4” Premium Carbon Filter
- 25 ft. Four-Layer Flexible Ducting
- Duct Clamps (x2)
- Hanger Straps (x2)
AC Infinity 4" Air Filtration Kit System
- Delivers 165 CFM of airflow for rapid environment scrubbing
- Australian virgin charcoal with 1200+ IAV for chemical absorption
- Standard 4-inch duct size connects to most small grow tents
- 2-year warranty, does not cover non-durable goods or consumables
- View More Details
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Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are building a small footprint tent because stagnant air and heavy odors are stalling your plant development.
- You are upgrading your exhaust setup because your current fan is too loud to run at night in a shared living space.
What We Found
- The 10-speed controller feels far more precise than the basic knobs found on other entry level inline kits.
- This 4-layer ducting resists pinhole light leaks much better than the standard single ply foil alternatives.
What Users Say
- Users who swapped out noisy prop fans say the quiet operation let them keep the tent in a shared living space.
- Buyers report that the Australian charcoal holds up for multiple cycles without letting a trace of scent through.
AC Infinity 4" Air Filtration Kit System
Tired of dealing with unwanted odors and stagnant air in your grow space? The AC Infinity 4" Air Filtration Kit is your all-in-one solution for creating a clean, fresh, and healthy environment for your plants. This comprehensive kit bundles a powerful inline fan with a premium carbon filter and durable ducting, providing everything you need to manage your climate effectively. Whether you're setting up a new grow tent or upgrading your existing ventilation, this system is engineered for quiet performance and superior odor elimination. For growers seeking automated climate control, consider the 4" Pro Air Filtration Kit System.
What's Included
Features




Quiet & Efficient Airflow
The CLOUDLINE LITE fan uses a mixed-flow design for high static pressure, delivering 165 CFM quietly.
Premium Odor Elimination
Features a filter with 1200+ IAV Australian virgin charcoal for superior absorption of odors and chemicals.
Precise Speed Control
Includes a 10-speed fan controller, allowing you to fine-tune the airflow for your specific needs.
Durable & Complete
The kit includes tear-resistant 4-layer ducting and all necessary clamps and straps for easy installation.
Specifications
| Specification | Value |
|---|---|
| Duct Size | 4" |
| Fan Dimensions | 7.48 x 11.89 x 6.93 in. |
| Total Airflow (Fan Only) | 165 CFM |
| Total Noise | 29 dBA |
| Max Speed | 2800 RPM |
| Static Pressure | 324 Pa |
| Max Power Draw | 25 W |
| Average Power Usage | 18 W |
| Voltage | 100-240V AC |
| Operating Humidity | 35 to 85% RH |
| Operating Temperature | 0 to 140°F |
| Ingress Protection | IP 44 |
| Fan Bearings | Dual Ball |
| L10 Life Expectancy | 67,000 Hours |
| Carbon Filter Dimensions | 13.35 x 6.97 in. |
| Flange Material | Aluminum |
| Mesh Material | Galvanized Steel |
| Carbon Type | Australian Virgin RC412 |
| Carbon Grade | 1200+ IAV |
| Carbon Thickness | 38mm |
| Maximum Airflow (Filter) | 210 CFM |
| Ducting Length | 25 ft (300 in.) |
| Ducting Material | PVC Thermoplastic & Aluminum Foil |
Support & Manuals
Warranty
This product comes with a two-year warranty from AC Infinity. Please note this does not cover non-durable goods or consumables. All sales final.
FAQs
This 4" kit is ideal for smaller grow tents, typically up to 3'x3' or 4'x2'. It effectively manages air exchange and odor control for spaces of this size.
Yes, the entire system is versatile and can be configured for either exhaust (pulling air out) or intake (bringing fresh air in), depending on your specific ventilation setup.
The lifespan of the carbon filter depends on usage and the level of odors. On average, with continuous use, we recommend replacing the filter every 9-12 months to ensure optimal performance.
This standard kit includes a 10-speed manual controller for direct fan speed adjustment. The 4" Pro Air Filtration Kit System upgrades to a smart controller that automates fan speed based on temperature and humidity, offering more advanced climate control.
The fan is designed for quiet operation, producing only 29 dBA at its highest setting. This is comparable to a soft whisper, ensuring it won't be a significant source of noise. For even quieter operation, consider adding an AC Infinity 4" Duct Silencer.
For a comprehensive overview and best practices, check out our in-depth guide on AC Infinity air filter kits. It covers everything from installation to optimizing your environment.
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.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.