Cafelat Silicone Group Gasket (La Marzocco Blue)

You should really measure your old gasket first, or at least confirm what the OEM size of your original gasket is. I quickly assumed the gasket in my Lelit Mara was a 8mm and ordered accordingly. It fit, but required an excessive amount of tightening to get the portafilter to seal; well past the 6-O-Clock position. I measure my OEM rubber gasket and found it to be 9mm. I reordered the 'blue' 8.5mm gasket and it's a much nicer fit. The portafilter tightens a little past the 6-O-Clock position, but much better than the 'red' 8mm gasket. The silicone is sturdy and seals very well, no leaks like my old rubber gasket was giving me, and I'm getting better shots since I'm not losing pressure to a leaky gasket. If you have an E61-style grouphead this is a good replacement gasket and a nice upgrade from a rubber one. It's inexpensive and very easy to replace. Also, get in there and do a good cleaning while you have the shower screen out. :-)

We got the Blue one 8.5mm. Perfect replacement for our Profitec 500

This gasket fixes the sealing/leaking issue with the Lelit Elizabeth. Have had two brand new Elizabeth's, both leak terribly from the portafilter seal. The blue Cafelat silicone gasket is slightly oversized for the Elizabeth, your portifilter handle will not lock perfectly at 6:00 when the gasket is new, but it allows you to get a tight seal and stops the leaking issue that these machines have out of the box. Over time the seal will wear in, allowing the handle to come to the full 6:00 position when locked.

This is a long term review. I have had my Gaggia Classic Pro since 2019 and several Gaggias before that. I replaced the stock gasket when I got my machine and use a naked portafilter (was using an OEM Gaggia one, but have since upgraded to the normcore -- highly recommended). My family and I make around 3-4 double shots per day. I finally had to replace this gasket because I was deep cleaning my machine and noted that it was breaking down, but not for any failure. I think the breakdown was because the brass of the Gaggia filter tabs that lock into the started wearing out and the lip of the filter basket kept riding higher and higher (hence replacing the filter for the normcore model which is stainless), thereby putting more and more pressure on the gasket. As the maintainer of our machine, I self-admittedly don't maintain the machine as the manufacturer intended (I find it easier to replace parts or the whole machine if it fails catastrophically) and we often leave a used filter/puck in the machine with it turned on for hours which I'm sure isn't great for corrosion of parts like the screen holder and gasket. Installation is incredibly easy as is removal. I use an icepick to remove and just press in with fingers to install. All this said, I keep two of these on hand at all times in case they need replacing and for the price, this is no big deal.

I had one of these on my old Expobar Office machine for several years, now just replaced the OEM gasket on my Profitec Pro 500 with this. The feel is a little different than the stock gasket; this new one is a little softer, and if you want to you can force the portafilter handle past straight out, but you don’t need to to keep it from leaking. This gasket has never leaked on either of the machines I’ve used it on, and based on my experience using it on the old machine, I expect it to last basically forever.

Fixed the leaky Profitec Go issue

Fit my Rancilio Silvia perfectly.

Installation Tip: I found I needed to put the flat side (lettered side) facing into the group head, not facing out. Otherwise the filter group did not fit because I could not push the gasket into the seated position, as the gasket is asymmetric and appears to be chamfered.