E61 Group Head Maintenance Kit – 8.5mm Group Seal + Shower Screen air release valve protecting the machine from damage

protecting the machine from damage

The shower screen distributes water evenly across the coffee puck

Fittings in and out are 3/8" BSPT male

Rocket espresso machines

E61 Group Head Maintenance Kit – 8.5mm Group Seal + Shower Screen air release valve protecting the machine from damageE61 Group Head Maintenance Kit 8. 5mm Group Seal + Shower Screen Keep your E61 group head in top condition with this essential maintenance kit, including an 8. 5mm group seal (gasket) and a cup shower screen. The group seal prevents leaks around the portafilter, while the shower screen ensures even water distribution across the coffee puck for consistent extraction. Replacing both together is best practice during any group head service. Kit Contents 1