Helios Fans RSD 400/800
Helios
Prices & Options
The Helios Fans RSD 400/800 is a high-efficiency duct silencer engineered to reduce airflow noise in ventilation systems while maintaining low pressure loss. Its durable housing is made of galvanized sheet steel and is internally lined with premium-grade mineral wool for optimal sound absorption. To enhance durability, the flow-side is protected with a fleece layer that prevents fiber erosion.
Designed to integrate seamlessly into duct systems, the RSD 400/800 matches standard fan diameters (R 20) and adheres to the DIN 24155 mounting hole specifications. This silencer provides excellent acoustic performance with minimal impact on airflow, making it ideal for industrial and commercial air handling applications.
| Code & Description | Price | |
|---|---|---|
| RSD400/800 : Helios Fans RSD 400/800 | £340.00 + VAT £408.00 | |
We accept : 
15% discount with code ‘welcnfan1’
Note: Code can only be used once per customer. Discount codes are entered after selecting shipping method.
Need it today? We offer same day deliveries
Same day deliveries locally & nationwide (UK mainland only). Price on request — Send message with your order, or call 0161 864 1777.