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The 54mm fit is perfect for my portafilter, and it’s genuinely cut down on how often I have to backflush. My espresso still pulls the same, but the cleanup after is noticeably less messy.

The 54mm size fits my portafilter perfectly, and after a week of daily shots, the group head and shower screen look almost brand new. I'm genuinely surprised how much mess this little disc prevents.

Honestly, I was skeptical at first, but this little 54mm screen really does keep the shower screen and group head much cleaner after pulling a shot. It sits perfectly on the coffee bed and has cut down my clean-up time noticeably.