* Weathered Clear Opening

The Colt WCO is a natural air extract ventilator, which is suited for day-today ventilation and automatic fire ventilation. The WCO has louvres on top, which can be set to any position required and two controllable side dampers; consequently the WCO can be used in all weather conditions. Moreover the capacity can be matched exactly to requirements. The WCO is used in (semi-) industrial buildings and in utility buildings.

* is brand name of Colt International