Grimac Black Plastic Water Valve Knob with Rubber Grip commercial-espresso-machine-parts/fiorenzato-c-s installation should be performed by

installation should be performed by a qualified technician familiar with your machine's wiring diagram

but the Linea Classic S AV excels in consistency

bundling every wear part you need for a complete group head service in one box

Able Kone Coffee Filter Cone

Seal material: Ruby

Grimac Black Plastic Water Valve Knob with Rubber Grip commercial-espresso-machine-parts/fiorenzato-c-s installation should be performed byGrimac Black Plastic Water Valve Knob with Rubber Grip Water valve knob with rubber grip found only on the Zola I and Zola II. Ships complete with the internal spring, so there's nothing extra to source. COMPATIBILITY Fits: Grimac Zola I, Zola II INSTALLATION Presses onto the valve stem, DIY, no tools required. PRO TIPS The spring is included with this knob, so don't order one separately. This is an out of production part with limited stock remaining.