The DRT/DRTI ceiling diffuser with rotatable nozzles is best suited for comfort ventilation and VAV applications. The unit consists of a front panel with plastic nozzles that can be rotated in 360°, and a back box with a round air spigot connection. DRT/DRTI operates with a draught-free air distribution, at a low noise level. The simple rotation of the aerodynamically designed polypropylene nozzles results in a flexible air distribution, from horizontal to a vertical mode. The diffuser can be connected directly to a TLM plenum box. Recommended max. ∆t: -12°C.