The SONODEC series consists of a perforated aluminium laminate inner duct, a polyester barrier to prevent the diffusion of glass wool particles, thermically and acoustically insulated with a glass wool layer and provided with an outer jacket strengthened with glass fibre.
When attached to the fan it significantly reduces the noise coming from the fan as well as the noise from the rushing air. Best results will be achieved when used on both sides of the extractor fan. You can easily cut it to the exact size needed and seal it to your fan or filter. Sizes refer to the inner diameter.
Price per running meter.