✅ Made for 6 in (150 mm) ducts – Inline duct silencer for large HVAC systems in homes, workshops, and offices. ✅ Noise reduction muffler – Lowers ventilation and fan noise up to 14 dB(A) without restricting airflow. ✅ Adjustable ventilation silencer – Fine-tune pressure by removing pre-cut holes; stack multiple for extra quiet. ✅ Easy duct installation – Simply insert into your HVAC ductwork for instant noise control. ✅ Reliable HVAC solution – Engineered by Neverest, part of Klimapartner, with decades of clean air expertise.
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