Filter wiht three different degrees of filtration - 4µm, 20µm, 50µm.  The condensate that collects in the bowl can be removed via a drain pipe that comes in two versions, RMSA (semi-auto or manual condensate drain cock) and RA (automatic condensate drain cock).  The latter works on the 'float' principle:  when the condensate reaches the maximum level mark, it is drained out irrespective of the pressure and flow rate of the system in which it is incorporated.