Rancilio Group Gicleur/Jet – Brass, 2mm Orifice Rancilio's brass gicleur (jet) for Classe and Epoca group heads, restoring correct water flow into the group. Rancilio tried a stainless-steel version of this jet and found it didn't perform as well, so they reverted to the original brass design, this listing is that proven brass part. SPECIFICATIONS Brass construction with integrated filter screen 2 mm orifice COMPATIBILITY Fits: Rancilio Classe and Epoca group heads Replaces: Rancilio part numbers R_48 and R_1067 (earlier stainless-steel version) INSTALLATION Straightforward DIY replacement once the group head shower screen and dispersion block are removed. PRO TIPS If shots run fast and thin or channel despite fresh baskets and a properly dosed puck, a clogged or worn gicleur is a commonly overlooked culprit, pull it and check the 2 mm orifice for mineral scale before replacing other parts. Rancilio switched back to brass after the stainless version underperformed, if your machine still has the earlier stainless jet, upgrading to this brass version can restore more consistent extraction.