ST slot grilles for attenuators and air transfer
Slot grilles ST type for sound attenuation and air transfer are intended to use in construction barriers separating spaces, that require pressure balancing.
ST grilles are made of galvanized steel and powder coated to white RAL 9010 color. Powder coating to different RAL color is possible on request. The interior of the grille is cladded with mineral wool to provide sound ttenuation. Normally slot grille is equipped with telescopic flange which allows for installation in building barriers with thickness between 95 and 145mm.