Circular swirl ceiling diffusers with flat frame and fixed blades
For the mounting of RER-LB and RER-LB ISO, the airtight connection between the diffuser and the plenum box is made halfway the upright collar of the diffuser. This is why the plenum box has to be installed at the right height before mounting the finishing grille.
Explanation
RWR-2 = Diffuser type
200 = Neck size of diffuser
Accessories
RER-LB = Plenum box
CRC = Regulating valve for plenum box
250 = Plenum box connection diameter 250