La marzocco GB5 / Linea Classic Anti-valve

La Marzocco GB5 / Linea Classic Anti-Valve – Genuine OEM

Replace a faulty anti-valve (vacuum breaker) on your La Marzocco GB5 or Linea Classic with this genuine OEM part. The anti-valve prevents a vacuum forming in the boiler as it cools, which could otherwise draw water back through the system or cause boiler damage. A failed anti-valve can cause boiler vacuum issues, water siphoning, or steam leaks.

Compatibility

• La Marzocco GB5
• La Marzocco Linea Classic

Symptoms of a Faulty Anti-Valve

• Boiler vacuum forming when machine cools down
• Water siphoning back through the system
• Steam or water leaking from the anti-valve body
• Visible damage or corrosion on the valve

Frequently Asked Questions

Is this a genuine La Marzocco part?

Yes, this is a genuine OEM La Marzocco anti-valve for the GB5 and Linea Classic.

Can I replace this myself?

Anti-valve replacement requires draining the boiler and working with pressurised fittings. We recommend this be carried out by a qualified technician. Our Sydney-based team can assist — contact us to book a service.