NEW - Plastic foam damper/silencer:
- made of polyurethane foam,
- regulation of air flow and noise suppression in the ventilation system,
- thickness: 50 mm or 75 mm,
- non-combustible material (class B2 according to DIN4102-1),
- a wide range of sizes,
- the possibility of using several dampers at a time in the ventilation duct.