- Carbon Filter
- Changeable Velcro Pre-filter
- Carbon Filter Belts
Vivosun 4" Duct Air Carbon Filter
- Processes 100% of airflow through a professional grade 1050+ RC 48 carbon bed
- Premium 1050+ RC 48 Virgin Australian charcoal captures 3x more contaminants
- Compact 4 x 14 inch footprint designed for small grow tents and tight spaces
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Who This Is For
- You are setting up a small scale exhaust system because a standard 6 inch filter won't fit in your compact 2x2 space.
- You are upgrading your air scrubbing because your current cheap filter lets pungent smells leak into the hallway.
What We Found
- Keep the pre-filter washed and dry because a dusty outer layer is the main reason these filters lose suction early.
- The 14 inch cylinder length is the sweet spot for 2x2 tents where every inch of vertical hanging space counts.
What Users Say
- Buyers who installed this in small basements say the smell vanished completely after just one hour of operation.
- Users moving from cheap generic filters report that this unit keeps the air neutral for twice as many cycles.
Vivosun 4" Duct Air Carbon Filter
Struggling with persistent odors in your compact grow setup or ventilation system? The Vivosun 4-Inch Air Carbon Filter provides a professional-grade solution, utilizing imported Virgin Australian activated charcoal to capture three times more contaminants than standard filters. It's the perfect choice for maintaining pristine air quality in small to medium grow tents, hydroponics rooms, and other residential spaces where efficiency is key.
Engineered with premium 1050+ RC 48 carbon, this filter processes 100% of the airflow, ensuring every particle passes through its advanced absorption matrix. This powerful design effectively eliminates pungent odors, chemical irritants, and airborne particulates without restricting your system's performance. The versatile 4-inch diameter integrates seamlessly with compatible inline fans and ducting, making it a core component of any effective air management strategy.
Whether you're managing a small 2' x 2' grow tent, a bathroom, or a basement, this filter delivers superior results. For larger spaces, consider the 6-inch or 8-inch models.
What's Included
Features




Superior Carbon Quality
Virgin Australian charcoal with a 1050+ RC 48 rating captures 3x more contaminants.
Compact Design
4" x 14" dimensions are perfect for small grow tents and tight ventilation spaces.
Complete Odor Elimination
Removes pungent odors, chemical irritants, and airborne particles from any environment.
Versatile Installation
Works as an intake or exhaust filter with 4-inch fans and ventilation systems.
Vivosun 4-Inch Air Carbon Filter Specifications
| Specification | Value |
|---|---|
| Filter Diameter | 4 inches |
| Filter Length | 14 inches |
| Carbon Type | Virgin Australian Activated Charcoal |
| Carbon Rating | 1050+ RC 48 |
| Installation | Intake or Exhaust |
| Color | Black |
Compare VIVOSUN Air Filtration Options
| Feature | 4" Duct Air Carbon Filter | 6" Duct Air Carbon Filter | R4 Air Filtration Kit |
|---|---|---|---|
| Duct Size | 4 Inches | 6 Inches | 4 Inches |
| Carbon Type | Virgin Australian Charcoal | Virgin Australian Charcoal | Virgin Australian Charcoal |
| Dimensions | 4" x 14" | 6" x 18" | 4" x 14" (Filter) |
| Key Component | Filter Only | Filter Only | Filter, Fan, Ducting & Clamps |
Warranty
This VIVOSUN product is backed by a manufacturer's warranty. Please contact us for more details on warranty coverage and claims.
FAQs
The Virgin Australian activated charcoal features a 1050+ RC 48 rating, which indicates a highly porous structure with a vast surface area. This allows it to adsorb three times more air contaminants, odor molecules, and chemical irritants than conventional carbon filters.
Absolutely. The 4-inch diameter and 14-inch length make it a perfect fit for small to medium grow tents, such as the VIVOSUN 2' x 2' Smart Grow Tent Kit, where space is limited. It provides powerful filtration without a large footprint.
The filter includes a changeable Velcro pre-filter that catches larger particles like dust and hair. This pre-filter should be cleaned or replaced every 3-6 months. The main carbon filter typically provides effective odor control for 12-18 months, depending on environmental conditions.
Yes, the Vivosun 4-inch filter is highly effective at eliminating common household odors from pets, smoking, cooking, and musty basements. Its ability to remove chemical irritants and airborne particulates makes it a versatile tool for improving overall residential air quality.
The filter connects to your 4-inch ducting. For optimal odor removal (exhaust), place it inside the tent and connect it to the intake side of your fan, like the VIVOSUN R4 Inline Fan. For filtering incoming air (intake), place it at the beginning of your ducting. For a detailed overview, check out this complete grow room setup guide.
This ensures that all air passing through the unit is forced through the activated charcoal bed, preventing any air from bypassing the filtration media. This robust design maximizes contact time between the air and carbon, guaranteeing thorough purification.
While smaller, this filter uses the same high-quality Virgin Australian charcoal as larger models. The 4-inch size is optimized for smaller spaces and lower CFM fans, delivering the same professional-grade efficiency. Explore the full range of Vivosun carbon filters to find the perfect size for your needs.
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.