Aluminium ventilation grill DUCOGRILLE CLASSIC G 20V

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The DucoGrille Classic G 20Z is a recessed mounted wall louvre manufactured from extruded aluminium profiles. The Turn and Click system ensures quick and easy assembly. An insect screen is fitted as standard. The Z shaped blade ensures a tight design. Technical features Visual free area - 95 % Physical free area - 34 % K factor intake - 42,93 K factor exhaust - 47,1 Ce - 0,15 Cd - 0,15 Fitting Depth - 30 mm Blade pitch - 20 mm Frame flange - 19 mm