Control the opening with operator crank handle
High quality hardware, with good performance, two point locking
Double sealing

Performance:

Wind Load Resistance: 5000Pa

Air tightness: 1.62m3/(m.h)

Water tightness: 500Pa

Sound insulation: 35dB

Thermal insulation: 2.8w/(m².k)

Maximum vent sizes:

Max width: 700mm

MAx height: 1400mm