VENTILATION MODERATOR

Increases daft efficiency Also serves as a safety valve in the event of an explosion- Simple adjustment without measuring instrument by turning the register- White zinc steel finish- SB1: For HOSEs from Ø 100 to 140 mm SB2: For HOSEs from Ø 140 to 200 mm SB3: For HOSEs from Ø 200 to 280 mm