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. :-)

It was a little tough getting this new gasket in, but my machine was still hot and that didn’t help. Definitely wait until your group head cools down and slowly work the new gasket in. Start by getting one part all the way in then slowly work in a circle easing it in until you’ve gone all the way around. Then seat it firmly by installing your portafilter a few times. Works great in my Diletta Mio (saturated group head). Not a single drop or leak from the first shot.

8 mm is perfect for my older Rocket Giotto. Great gasket.

These work perfect for my Profitec 600 Pro, the 8mm is smaller enough to make the open portafilter turn at 5:00 , while this 8.5mm centers it as 6:00 perfect!

The silicone gasket works great on my Gaggia Classic espresso machine. The size is correct and easy to install.

This cost quite a bit more than the Rancilio Silvia OEM black rubber gasket, so I knocked off 1 star on the review. Only time will tell if being silicone means it will last longer. It went in easy (beveled side up). I always use some food grade silicone grease to make the gasket go into place properly. Best to use the portafilter with basket remove to get the seating rather than trying to use your fingers or some kind of tool. I use a standard Rancilio portafilter but have a triple basket that sits higher compared to the single, so getting a gasket that works well and is not too tight is sometimes difficult. I tried using a green rubber group E61 gasket and it was too tight with my triple basket even though the single basket did work.

This is the second one I have bought; the first Cafelat silocone gasket was for Gaggia Coffee. I have installed it yesterday. Despite what some folks have said (and even Espressoparts, if my memory is not failing me, said "this is not the one we recommend") these work well for me. Fact is, when my Silvia was just bought, the gasket required realy, really superstrong tightening of the portafilter or it leaked. Eventually when 3 years ago I decided, after some more than 10 years to replace it, I bought the original gasket again. Sure enough, it is tough, not soft at all, and required lots of strength to tighten and kept leaking. And recently, after less than 3 years, I have not enough strength to tighten it. So, remembering my experience from 4 years ago when I replaced the gasket on my Gaggia Coffee (which I am sure was ... 20 years old and the extraction really took some doing) and was impressed with the results: the tightening required normal effort and no leaking was observed, I bough the same for the Silvia, in spite of the Espressoparts recommendation. Well, I am happy: I duplicated the Gaggia result: the tightening requires just a normal human effort, and no leak is observed. I know that over one year of constant use my Gaggia did not develop any leaks (I stopped as it was my office machine and during the pandemic I have been working from home). And then I kept using it intermittently (took on trips in a car) and it was, and still is fine - I have just resumed normal use by having returned to the office full time. So. Not sure what is expected, life-wise, from a 10-dollar gasket, but to me it is totally worth buying and is, in my opinion, better than the original

Installed this on my Rocket Giotto. I'd ordered a yellow gasket that was supposed to fit the Rocket from the place I bought the machine, but that gasket was next to impossible to install and felt too big. This was perfect (8mm) and installed easily. Works well inside the machine and no more leaking (My old gasket was quite old and brittle). One thing to mention: one side of the gasket will have a slightly rounded profile and the other side will be a square 90 degree profile. Make sure you install the gasket correctly - rounded profile fits into the rounded shower screen corner.