Attenuators (Silencers) – 100mm 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.
KWL YOGA 700 EV/WW - Decentralised Compact Ventilation Unit With Heat Recovery - Helios
RVS 500 - Helios - Back Draught Shutter
Twinflow STDL125-1EC - Centrifugal Box Fan (Circular Spigot) - Elta
VK 250 - Helios - Gravity Shutter
RAG 250 - Helios - Rain Repellent Grille
KABB/4 3000/315 - Soler And Palau - Single Phase 4 Pole - Acoustic Centrifugal Kitchen Extract Fan
HPA630/4-1A - Elta - Plate Mounted Axial Flow Fan
SQSDCV250-1ECL - Quietflow Centrifugal Box Fan - Elta
068-0315-2DEP - 315mm - Flanged Silencer - Elta
Quick-Fit Reducer - 400mm Main Duct - Galvanised - Nordfab
060A-0560-C Powder Coated Mounting Feet - Elta
VDD 400/4 T120 - Mixed flow roof fan - 3 ph - Helios
Raptor SDA500/46-3AC - Elta - Case Mounted Axial Flow Fan
MK 200/225 - Helios - Mounting Feet (2 PCS.)
WHR 200 - Helios - Water Heater Battery For Circular Ducting
VR 400 - Helios - Extension Flanged Casing
068-0250-JF3 - 250dia - 900mm Long - Spigot Silencer - Elta 
