johhnyguitar wrote:The orange one has 2 o-rings in the cylinder, no seals on the piston. The Silver one has 2 U-cup seals on the piston, none in the cylinder.
johhnyguitar wrote:Ni How Ma Henry? Why is your O-ring bulging? Hmmm, both of ours have a regular flat portafilter gaskets - does yours have an o-ring like a La Peppina or a Pavoni?
johhnyguitar wrote:Good to know the orange is the newer one! I wonder, is the color relevant to the seal system - in otherwords, did they change the color when they changed the system, or was that change only coincidental?
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