• AC Infinity 4" Inline Fan Carbon Filter & Ducting Kit
  • AC Infinity 4" Inline Fan Carbon Filter & Ducting Kit
  • AC Infinity 4" Inline Fan Carbon Filter & Ducting Kit
  • AC Infinity 4" Inline Fan Carbon Filter & Ducting Kit
  • AC Infinity 4" Inline Fan Carbon Filter & Ducting Kit
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AC Infinity 4" Inline Fan Carbon Filter & Ducting Kit

£149.00
£149.00
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The Complete All-In-One Grow Room Ventilation Upgrade
Establish the perfect microclimate and eliminate unwanted smells with the AC Infinity 4” Inline Fan, Carbon Filter & Ducting Combo Kit. Designed as a complete, out-of-the-box ventilation package, this heavy-duty system includes everything you need to manage heat, humidity, and airflow in small grow tents or indoor gardens. Take the guesswork out of matching separate components—this hardware combination ensures optimal static pressure compatibility for efficient, leak-free performance.
At the core of this kit is a premium, mixed-flow 4-inch inline fan powered by an energy-efficient EC motor, delivering a capable 205 CFM airflow at a whisper-quiet noise level of just 28 dBA. It connects directly to the included Australian Virgin Charcoal Carbon Filter, which features a dense bed of high-porosity charcoal to scrub all organic odours, airborne pollutants, and pollen. Completed with a 4-layer flexible aluminum ducting line, this combo kit keeps your grow space running cool, clean, and completely discreet.
Technical Specifications & Engineering Data
Specification Parameter Engineering Data Value
Duct Connection Size 4 Inches (100 mm)
Total Airflow Capacity 205 CFM (348 m³/h)
Acoustic Noise Output 28 dBA
Motor Type Architecture PWM Controlled EC (Electronically Commutated)
Carbon Filter Material 1200+ IAV Australian Virgin RC412 Activated Charcoal
Filter Bed Thickness 38 mm (High-Porosity Layer)
Ducting Composition 4-Layer Construction (Aluminum, Thermoplastic, PVC)
Maximum Power Draw 30 Watts
Ingress Protection Rating IP-44 (Dust and Splash Resistant)
Fan Bearing Assembly Dual Ball Bearings (67,000 Hour Lifespan)
Voltage / Frequency 100V - 240V AC / 50-60Hz
Included Accessories Wired 10-Speed Controller, Pre-Filter Cloth, 2x Duct Clamps
How to Install the AC Infinity 4" Ventilation Combo Kit
Follow these straightforward steps to safely mount, connect, and configure your complete extraction system.
1. Plan and Hang Your Components
  • Identify the airflow direction on the inline fan using the embossed arrow on the plastic body.
  • For optimal odor control, hang the Carbon Filter inside the top section of your grow tent using heavy-duty fabric straps.
  • Mount the Inline Fan next to the filter, making sure the arrow points away from the filter to pull stale air through the charcoal bed.
2. Connect the System with Ducting
  • Slide the raw end of the 4-inch aluminum ducting over the filter flange and connect it directly to the intake side of the fan.
  • Secure this connection tightly using one of the included stainless steel worm clamps to prevent unscrubbed air from bypassing the filter.
  • Attach the remaining ducting line to the exhaust side of the fan and route it out through your grow tent's ventilation socks to vent heat away from the room.
3. Power On and Set Fan Speeds
  • Fit the white fabric pre-filter sleeve over the outside of the carbon filter to catch large dust particles.
  • Plug the inline fan's power supply into a standard wall outlet.
  • Connect the included wired 10-speed controller to easily adjust your airflow across ten precise speeds, balancing effective cooling with minimum room noise.
Care and Maintenance Tips
  • Rotate the Pre-Filter: Wash the fabric pre-filter cloth every 3 to 4 months to prevent dust from choking the air intake and straining the fan motor.
  • Carbon Filter Lifespan: For best performance, replace the carbon filter every 12 to 24 months, depending on your grow room's relative humidity and odor intensity.
  • Tool-Free Cleanup: Unclip the fan's central motor box from the mounting frame to wipe down the impeller blades between harvest cycles without taking down your entire ducting array.
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Complete 4-Inch Ventilation & Odour Control Made Simple

Take the hassle out of building your grow room ventilation with the AC Infinity 4-Inch Inline Fan, Carbon Filter & Ducting Kit. This complete all-in-one ventilation system combines a quiet EC inline fan, premium Australian activated carbon filter and heavy-duty flexible ducting to create efficient airflow while eliminating unwanted odours. Perfect for compact grow tents and indoor gardens, it's an easy way to create a healthier growing environment with reliable climate control straight out of the box.

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Frequently Asked Questions

The kit includes a 4-inch AC Infinity CLOUDLINE inline fan, a 10-speed speed controller, premium Australian activated carbon filter, 25ft heavy-duty flexible ducting, duct clamps, rope clip hangers, hanging straps and a pre-filter cloth. Everything required to build a complete grow tent ventilation system is included in one package.

This 4-inch ventilation kit is ideal for smaller grow tents including 2x2, 2x4 and 3x3 grow tents. With airflow of up to 165 CFM, it effectively removes heat and humidity while maintaining fresh airflow throughout your growing environment.

The included carbon filter uses 1200+ IAV Australian Virgin RC412 activated charcoal with a 38mm carbon bed to capture unwanted odours, VOCs and airborne contaminants. This helps keep your indoor grow discreet while maintaining excellent airflow through the ventilation system.

A complete AC Infinity Air Filtration Kit ensures the inline fan, carbon filter and ducting have been matched for optimum airflow and static pressure. This makes installation quicker, eliminates compatibility issues and delivers reliable ventilation performance from day one.

Yes. The CLOUDLINE inline fan features an EC motor with PWM speed control and a mixed-flow design to provide powerful airflow while operating at just 29 dBA. It also consumes less energy than many conventional inline fans, making it ideal for continuous operation.

Absolutely. The inline fan is compatible with the AC Infinity UIS™ ecosystem, allowing you to upgrade to smart environmental controllers, connect additional compatible devices and expand your grow room as your setup evolves. This makes it an excellent long-term investment for indoor growers.