Description
Large silicone (red) o-ring that seals the bottom to the top half of the boiler. You’ll have to replace this seal if you’ve opened up the boiler as old seals won’t reseal properly due to heat wear.
If you’re looking at this product because your machine is leaking water along the sides of the portafilter, this is most likely not your problem (the grouphead seal is) but due to the construction of the boiler you will have to replace this one as well.
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