RAM Sonoduct – 4" to 12" Acoustic Insulated Ducting (5m & 10m)
RAM Sonoduct – 4" to 12" Acoustic Insulated Ducting (5m & 10m)
Most people blame the fan for the noise. Usually it's the ducting. A fan's hum is fine; the roar comes from air rushing down a thin metal tube that rings like a drum. Swap that tube for RAM Sonoduct and the same fan suddenly sounds half as busy. It's the cheapest way to make a ventilation system quieter, and nobody needs to know you did it.
Why Sonoduct
- Acoustic insulation. Two plies of tough aluminium/polyester laminate sandwich a thick layer of sound-absorbing insulation. Air noise is soaked up before it can escape, so it's the quietest ducting in the RAM range.
- Thermal insulation. The same layer keeps warm air warm and cold air cold. That stops heat leaking into the room and cuts the condensation that drips from cold uninsulated ducting.
- Holds its round shape in every installation, keeping airflow smooth.
- Supplied boxed for clean storage and handling.
Sizes
4" (102mm), 5" (127mm), 6" (152mm), 8" (203mm), 10" (254mm) and 12" (315mm), in 5m and 10m lengths. Match the ducting to your fan and filter.
Aluduct, Combi-Duct or Sonoduct?
| Ducting | Noise | Pick it if… |
|---|---|---|
| Aluduct | Good | You want cheap, light and easy |
| Combi-Duct | Better | Light leaks or looks matter |
| Sonoduct (this one) | Best | Noise, heat loss or condensation is a problem |
Not just for growers
- Grow tents and rooms in bedrooms, flats and anywhere noise matters
- Bathroom and kitchen extractor runs through lofts (it reduces condensation drips)
- Home cinemas, studios and offices with ventilation
- Portable air-con exhaust runs
Rose's Pro-Tip
"You don't need to run Sonoduct everywhere. Most of the noise comes out of the first metre or two after the fan, so a short length of Sonoduct straight off the fan, joined to cheaper Aluduct for the rest of the run, gets you most of the quiet for a fraction of the cost. Pair it with a silencer for near-silent extraction."
FAQ
How do I cut it?
Cut the outer and inner layers with a sharp knife, snip the wire with side cutters, and tape over the cut end so the insulation is sealed in.
How do I attach it?
Slide the inner layer over the spigot, clamp it with a ducting or jubilee clip, then pull the outer layer over and tape it.
Will it slow my airflow?
No more than standard ducting of the same size, provided it's pulled straight rather than left bunched up.