La Marzocco Mechanical Paddle (MP) Group Rebuild Kit - Version 2 Introduced by La Marzocco in June 2016, this updated rebuild kit uses H.1.024 "Kalrez" o-rings, which reportedly last roughly three times longer than the earlier H.1.011 o-rings used in the original kit. For a full walkthrough, see La Marzocco's Mechanical Paddle Service Guide. SPECIFICATIONS 1 x H.1.016 1 x H.1.018 1 x H.1.019 1 x L103/B 1 x L103/A 3 x H.1.024 (Kalrez) 3 x H.1.010 COMPATIBILITY Fits: La Marzocco Mechanical Paddle (MP) group INSTALLATION A technician-level rebuild - follow La Marzocco's service video closely, as the mechanical paddle group involves multiple seals and precise reassembly. PRO TIPS The Kalrez o-rings in this Version 2 kit are rated for roughly triple the service life of the original H.1.011 o-rings, so it's worth upgrading even if you're only replacing a single seal.