The RA grilles have been designed to offer minimum resistance to the air passing through them, and to produce the effect of maximum sound absorption.

Mod. RA-300:
- Normal absorption power. Mod. RA-600:
- High absorption power.

In all those applications where the movement of air through a structure could be a posible means of transmitting sound. Exemples: compressor rooms, engine rooms, elevator shafts, air conditioning installations, exterior air intakes, discotheques…

Available in galvanised sheet format. Also available by order in painted or in stainless steel format (AISI-304) and also in bird-proof mesh format, with a fibre glass interior filling.