Attenuators (Silencers) – 125mm Diameter
Excellent sound absorbing properties.
Inline Circular Attenuators in standard diameters from 100mm to 400mm diameter.
Attenuators are available in standard 300mm, 600mm, 900mm and 1200mm lengths.
Please use the drop down menu to select the length of the attenuator required.
RVE 160 - Helios - In-duct Back Draught Shutter, Air Tight
MVZ 250 - Helios - MixFlowVent Two-Stage Fan Unit
ASD-SGD 315 - Helios - Bell Mouth And Guard
068-0450-2DENP - 450mm - Flanged Silencer - Elta
RVM 250 - Helios - Back Draught Shutter
STS 630 - Helios - Flanged Flexible Connector
MRV 315 - Helios - Mounting Feet For Vertical Attachment
GBW 450/4 - 1PH GigaBox Centrifugal Fan – Helios
GB - WK 400/450/500/560/630 - Wall bracket - Helios
Curved Boot - 250mm Diameter
SF6002 - Cantilever Arm Kit - StrutFoot
WHR 250 - Helios - Water Heater Battery For Circular Ducting
VR 450 - Helios - Extension Flanged Casing
RVS 280 - Helios - Back Draught Shutter
Pressed Tee Piece - 150mm Diameter 
