group head upgrade breville sage 58mm oracle dual boilerDesigned for Consistency The honeycomb pattern on the precision shower screen isn't decorative it's engineered. The closely spaced hexagonal micro holes distribute water across a wider surface area than a standard stamped screen, saturating the puck more evenly from the first moment water makes contact. Pair that with a stainless diffuser plate (which spreads water pressure before it even reaches the screen) and you've replaced both sides of the water