La Marzocco 'GS3' Steam Boiler z-9-z-11-parts/z-11-re-manual-group If you have to have

If you have to have the best knock box available

so in a hard-water area this is the upgrade path

Pro tip: Verify all wiring before powering on to avoid control issues

This part is non-returnable once installed or wired - review our return policy before ordering if you're not certain of fit

La Marzocco 'GS3' Steam Boiler z-9-z-11-parts/z-11-re-manual-group If you have to haveLa Marzocco 'GS3' Steam Boiler This is the bare steam boiler shell for the La Marzocco GS3 shell only, nothing else included. This is a special order item shipped directly from the manufacturer separately from the rest of your order: in stock units ship fast, while out of stock units typically require 1 2 weeks for processing before shipping. COMPATIBILITY: Fits: La Marzocco GS3 Replaces: La Marzocco part #L. 1. 002 Works with: GS3 hydraulic and