IMS E61 Precision Shower Screen ø 60mm - E6135WM From  £11.76

As one would expect, fits perfectly in an E61 machine.

I have a Brewtus I, and 2 other shower screens I've experimented with - one has a flat rivet in the centre, the other doesn't.

The difference is obvious as soon as you open the tap. Even the dribble that comes out (the "preinfusion" from boiler pressure) is very even.

Running the pump with no puck it is also obvious that this screen distributes the water very well.

Have only made a couple of shots with it but to begin with it seems that this makes a machine even more forgiving - it doesn't seem that there is a specific channel that the water wants to take.

Can't rate it's durability yet but for the price you really can't go wrong.