- Exposed Saturated Group: increased temperature stability, ergonomics and workspace visibility.
- Dual Boiler System: separate boilers optimize espresso brewing and steam production.
- Internal Pump: makes the GS3 ideal for the home.
- Dual PID (coffee and steam): allows you to electronically control coffee and steam boiler temperature.
- Insulated Boilers: reduce energy consumption while contributing to temperature stability.
- Ruby Flow Restrictors: synthetic ruby flow restrictors resist scale formation and erosion.
- Pre-heating System: prior to entering into the coffee boiler, water is pre-heated – thus increasing productivity.