The SCD silencer from Systemair is characterized by high flexibility and excellent sound insulation values. The internal duct consists of a closed, non-woven internal hose (washable) and an insulation layer made of glass wool with a thickness of 25mm and sound reducing and thermal effective properties. The outer casing is made of glass-fibre reinforced, tear-resistant aluminium laminate. The silencer (1m length) provides duct connections made of galvanized steel sheet on both sides for the connection directly to the duct system. One side is equipped with a connection sleeve and the other side with a connection fitting to guarantee connection flexibility.