Someone wrote an entire gathering of info about Leva Evo, sorry dont remember names. There he posted info about gaskets alternatives with my pictures, showing the gasket I had placed inside the evo. I think it’s just a blue silicone 5.5mm thickness gasket.
I am not sure if this one is the one, take out the stock gasket and measure it. If you dont have a micrometer/subler/measuring device just place it on a paper trace the interior/exterior and use a ruler to measure.
https://www.espressocups.com.sg/product_info.php?products_id=793
Again I am not sure this is the gasket I got, you must research and measure. I dont have the machine anymore so can’t give you any info. I replaced the gasket for 2 reasons:
-feedback given by silicone is much better than rubber when locking the pf in-
-the naked aftermarket portafilter did not lock at 6 a clock in the grouphead and it didnt feel safe enough for my liking to be locked at 7-7:30, there are huge forces involved, one time you dont use enough force to lock in the pf and then the pf blows out of the group destroying the cup, scratching the machine stainless and making a mess.
Also, there is a unexperienced user spreading false information on home barista that this machine doesnt because of it’s high pressure doesnt handle well with big flat grinders. That is nonsense, my best friend has the leva with ultra (98mm ssp) and he is really happy and I had it too with big burrs (98, 64, 80mm). He is drinking coal roasts on expensive equipment and complains about flavors, from coal you wont get flavor notes, you can get coal juice.
