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Spiral is large end (female) and requires small end (male) connection pieces to fit two pieces of spiral together
offering a safe and durable solution for residential
they effectively reduce airborne noise while maintaining efficient airflow
Safety wire fitted as standard
Ideal for Ventilation Systems: Perfect for ventilation systems requiring high-pressure fans and speed control
Circular Sound Attenuator Silencer Rectangular Ductwork Spiral is large end (female)Designed with an external galvanised duct system Inner casing is made of perforated sheet steel Cavity is filled with sound absorbent mineral wool Offers excellent sound absorbing properties
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