The A540 directional diffusers are made for surace mount installations and represent an attractive alternative to other ceiling diffuser options. They are manufactured in top quality aluminium material with removable cores and feature a sleek low profile blade design.  The A540F is the flat-frame design and the A540B is the beveled-frame design.

This is a versatile series for office installations with drywall/sheetrock ceilings instead of T-bar.  Each is available with optional aluminium opposed blade dampers (OBD) and feature several airflow patterns.