A 6 in EC fan that moves about as much air as the CLOUDLINE S6 on half the rated power, for less money. The rated noise is higher.
Amazon $89.99The VIVOSUN AeroZesh T6 is the better inline duct fan overall, rated 4.0 to 3.1. The VIVOSUN AeroZesh T6 leads on value and controls. The VIVOSUN AeroZesh T6 costs $26 less ($89.99 vs $115.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
A quiet 6 in EC fan for 4x4 tents, best for owners already using Spider Farmer’s GGS controller.
Amazon $115.99Which should you buy?
- Choose the VIVOSUN AeroZesh T6 for value ($22.06 per 100 CFM ($89.99, 408 CFM) vs $28.85 per 100 CFM ($115.99, 402 CFM)) and controls (speed controller included, timer or cycle modes vs speed controller included).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 6 in inline duct fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | VIVOSUN AeroZesh T6 | Spider Farmer 6 in Inline Fan |
|---|---|---|
| Overall rating | 4.0/5 | 3.1/5 |
| Value 25% | 61 $22.06 per 100 CFM ($89.99, 408 CFM) | 33 $28.85 per 100 CFM ($115.99, 402 CFM) |
| Efficiency 25% | 96 11.7 CFM per watt (408 CFM, 35 W), from a power figure labeled average | 39 6.5 CFM per watt (402 CFM, 62 W) |
| Airflow 15% | 79 408 CFM through 6 in duct | 76 402 CFM through 6 in duct |
| Noise 15% | 80 32 dBA at full speed | 80 32 dBA at full speed |
| Controls 10% | 55 speed controller included, timer or cycle modes | 40 speed controller included |
| Warranty 10% | 25 2-year warranty | 0 warranty not published, scored as none |
Specifications
| VIVOSUN AeroZesh T6 | Spider Farmer 6 in Inline Fan | |
|---|---|---|
| Performance | ||
| Duct size | 6 in | 6 in |
| Rated airflow | 408 CFM | 402 CFM |
| Power at full speed | 35 W | 62 W |
| Power figure | Labeled average | Rated power |
| Airflow per watt | 11.7 CFM/W | 6.5 CFM/W |
| Price per 100 CFM | $22.06 | $28.85 |
| Noise at full speed | 32 dBA | 32 dBA |
| Top speed | 3,000 RPM | - |
| Controls | ||
| Motor | EC | EC |
| Controller | 10-speed controller with cycle modes | Speed controller with RJ12 port |
| Speeds | 10 | Stepless |
| Temperature and humidity control | No | No |
| Phone app | No | No |
| Timer or cycle modes | Yes | No |
| Build | ||
| Housing | Plastic | Plastic |
| Ingress rating | IP44 | IP42 |
| Voltage | 110-240 V | - |
| Warranty | 2 years | - |
