Filter

Scope

1. walls (4)
2. shaft walls (3)
3. solid walls (3)
4. ceiling (3)

Schallschutz

1. einfacher Schallschutz bis 33 dB (2)

Access Panel Design

1. Akustik / Schallschutz (2)
2. air/dust resistant (2)
3. for solid wall indoor (1)
4. Removable / open from top to bottom (4)

System

1. System F4 (1)
2. System F5 (3)
3. System F6 (3)
4. Systém BMW (3)