Replace your existing ROK plunger with our pressure gauge version. Simply raise the arms, undo the top bolt then remove and replace the plunger. Note - the plunger does NOT include an O-ring. Either swap out the existing one or order a new one here.
Color
Black, Silver
Pattern
Solid
Includes
Plunger only (no O-ring)
Category
Coffee maker and espresso machine replacement part
Summarized by Shop
4.4
17 ratings
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1
Nice upgrade
It's a nice upgrade, not necessary, but nice. I have used a rok of sort for 12 years plus now. Had original, upgraded it, got a brand new one and upgraded with this screen. Using a flair also regularly it is nice to have the visual feedback and sort of settled on a better pre infusion time as a result
A
Anonymous · May 4, 2026
Nice upgrade. Works well and is easy to install. Small downside is that the additional material removes some heat.
A
Anonymous · May 28, 2026
Essential Accessory for the GC ROK
An essential accessory for the GC-ROK this has shown that i was actually over pressurizing my machine. and now I'm able to pull much more consistent shots.