La Marzocco GB-5 EE Model 2 3 4 Group CPU wega-orion/orion-sealed-boiler-pipes so this is the correct

so this is the correct replacement across the board

Return spring for post-2001 two-group-and-larger lever espresso machines

the o-ring and washer are cheap insurance against a return trip

Ships with the spring but no basket

La Marzocco GB-5 EE Model 2 3 4 Group CPU wega-orion/orion-sealed-boiler-pipes so this is the correctLa Marzocco GB 5 EE model 2 3 4 group CPU (also used in Mistral). Fast shipping when in stock. When out of stock this becomes a special order item and typically requires 4 6 weeks for processing prior to shipping. Specifications: EE model CPU Compatibility: La Marzocco GB 5 EE 2 3 4 group and Mistral Installation: Direct CPU replacement Recommended for qualified technician. Pro tip: Non refundable electrical part, confirm compatibility first.