Rhino Ultra Silent EC Fan – Inline Extractor Fans
Rhino Ultra Silent EC Fan – Inline Extractor Fans
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Description
Serious airflow, half the noise
The Rhino Ultra Silent EC Fan range packs over 20 years of Rhino ventilation experience into an energy-efficient EC motor inside an acoustically dampened, sealed steel body, used in hundreds of thousands of grow rooms worldwide. Available in 6", 8", 10", 12" and 14", it delivers from 530 up to 4357 m3/h of extraction while running far quieter than a standard fan, so you get strong airflow without your setup announcing itself.
Key Benefits
- EC technology for energy-efficient running with no phantom power drain
- Acoustic dampening foam and sealed steel body for roughly half the noise of the non-silenced Ultra
- Up to 4357 m3/h airflow across five duct sizes
- No air leaks, so the room reaches target temperature quickly
- Built-in eyelets for straightforward mounting anywhere
- Varispeed control compatible, and pairs with Rhino Pro Filters
Need strong extraction without the fan noise giving your grow away?
Loud extraction is one of the most common complaints for growers running a tent in a residential space, and standard AC fans waste energy at full speed when they don't need it. The Ultra Silent's EC motor and acoustic foam cut both energy draw and noise, while the sealed steel body stops the air leaks that slow how fast a room hits temperature.
How to Use
- Pick the size for your room and target air changes (6" to 14").
- Mount using the built-in eyelets and connect ducting to a carbon filter such as a Rhino Pro Filter.
- Run continuously, using the Varispeed or a compatible RJ45/3-pin controller to hold your target temperature and humidity.
- Keep intake and extraction balanced for a slight negative pressure in the tent.
Technical Specifications
- Motor: energy-efficient EC
- Body: sealed steel with acoustic dampening foam
- Motor type: EC, mixed-flow impeller
| By size | 6" - 530m3/hr | 8" - 1205m3/hr | 10" - 1800m3/hr |
|---|---|---|---|
| Airflow | 530 m³/h | 1205 m³/h | 1800 m³/h |
| Power | 40W | 75W | 150W |
| Noise | 50 dB | 52 dB | 55 dB |
| Control | Variable 0–100% + controller compatible | ||
| Max speed | 5000 rpm | 3800 rpm | 3200 rpm |
| Static pressure | 500 Pa | 520 Pa | 510 Pa |
| Weight | 5kg | 7.5kg | 13.7kg |
| Dimensions | 47 x Ø24.5cm | 61.5 x Ø31cm | 77 x Ø33cm |
| Matching Rhino Pro filter | 150 x 600mm | 200 x 600mm | 250 x 1000mm |
| By size | 12" 315mm -2987m3/hr | 14" - 4357m3/hr |
|---|---|---|
| Airflow | 2987 m³/h | 4357 m³/h |
| Power | 320W | 550W |
| Noise | 66 dB | 70 dB |
| Control | Variable 0–100% + controller compatible | |
| Max speed | 3000 rpm | 3000 rpm |
| Static pressure | 677 Pa | 716 Pa |
| Weight | 19kg | 26.3kg |
| Dimensions | 95 x Ø43cm | – |
| Matching Rhino Pro filter | 315 x 1000mm | 350 x 1000mm |
Frequently Asked Questions
How much quieter is it than the standard Rhino Ultra fan?
Rhino lines the steel body with noise-dampening foam and says this cuts fan noise by more than 50%, even at top speed. From 8" upward the airflow figures match the non-silenced Ultra size for size.
Which size do I need?
Work out the volume of the space (length × width × height in metres) and aim to change the air about once a minute — volume × 60 gives m³/h — then add 25–50% headroom for the carbon filter and ducting. A 1.2 x 1.2 x 2 m tent needs roughly 175 m³/h before headroom, well within the 6"; the 12" and 14" suit large rooms and multi-tent extraction.
Which carbon filter should I pair it with?
Rhino pairs each size with a Rhino Pro filter: 6" 150 x 600, 8" 200 x 600, 10" 250 x 1000, 12" 315 x 1000 and 14" 350 x 1000.
Can it run from a temperature controller?
Yes. As an EC fan it runs from the supplied Varispeed or from Rhino's 1EC, 2EC and 2EC + RH controllers, which raise and lower the speed to hold your set temperature (and humidity on the RH model); RJ45 and 3-pin adaptors suit other EC controllers.
Works Well With
Questions & answers
Which size do I need?
The 6in moves 530 m3/h, the 8in 1,205 m3/h, the 10in 1,800 m3/h and the 12in (315mm) 2,987 m3/h. Pick the size for your room and target air changes, allowing for your filter.
How quiet is it?
50 dB(A) on the 6in, 52 on the 8in, 55 on the 10in and 66 on the 12in. Acoustic foam in a sealed steel body makes it roughly half as loud as the non-silenced Rhino Ultra.
Does it come with a controller?
Yes. A Varispeed controller is supplied for 0–100% speed control, and the fan also works with RJ45 and 3-pin controllers.
Which carbon filter should I pair it with?
Rhino Pro carbon filters are the natural match. Size the filter to the fan's airflow.
How much power does it use?
40W on the 6in, 75W on the 8in, 150W on the 10in and 320W on the 12in, from an energy-efficient EC motor.
