Rocket Group Head Kit epoca-1-group-parts/epoca-steam-water-valve Media: air

Media: air

It is nicely designed with measurement markings for cold brew precision

(1 L) of hot water

check whether your grinder's post is threaded or a stud before ordering so you get a piston that actually mates with it

Rocket Group Head Kit epoca-1-group-parts/epoca-steam-water-valve Media: airRocket Group Head Rebuild Kit, Boxer R9 A bundled group head kit for the Rocket Boxer and R9, covering the small hardware and seals that typically need replacing together during a group head service. SPECIFICATIONS Includes: 1x group screen screw, 1x group head screen, 1x group head portafilter gasket, 1x screen holder dispersion plate o ring COMPATIBILITY Fits: Rocket Boxer and R9 INSTALLATION DIY friendly for an experienced home user; a technician