Manual or motorised
Steel construction
Flame retardant
External insulation
Rectangular ducts
Manual or motorised
Steel construction
Airtight
Indoor/Outdoor use
Steel construction
Manual or actuator operated
Maintenance free
Control & Shut-off
Explosive atmospheres
Actuator & Manual versions
Steel casing
Manual or actuator operated
Steel construction
Maintenance free
Indoor or conditionally outdoor use
Easy installation
Steel construction
Air volume regulation
Size options