ROK GC Conversion Kit
- Four-part pressure-chamber conversion kit to upgrade or refresh any ROK espresso machine
Upgrade your ROK Espresso Machine with this conversion kit.
Full kit includes:
- GC plunger
- GC cylinder
- Silicone o-ring
- Silicone/Stainless Steel filter seal
VIDEO: Conversion Kit Fitting Guides:
Our customers also bought

Eureka Mignon Manuale 15BL Espresso Coffee Grinder, Black
Customer reviews
ROK GC Conversion Kit
works well
D.B.Excellent Product
Thank you seller for the wonderful product i have been received my parcel ROK GC conversion Kit in safely and good condition. Godbless more success in the future. 😇🙏
Erwin V.ROK GC Conversion Kit
Perfectly complemented a device that was already in very fragile condition. I bought this about 10 years ago and the device has been at least 5 years at the back of the cabinet. Fortunately, I didn't give it up. This accessory made it like new again :)
H.S.New brains for an old machine
I wish there were more replacement or even new components available for devices. I've bought a new glass for a Bodum French press, a new rubber for an Aeropress, and now a new water reservoir for the ROK. Strangely, pressing feels lighter, but the pressure and extraction time remain the same. It also seems more hygienic. The only downside is that it's harder to estimate the amount of water by eye since the reservoir is not transparent. A small drawback that doesn't bother me personally.
J.H.