Why this O‑ring matters Stops leaks at the brew group so you get consistent pressure and fewer messy drips. Restores a tight seal for older or worn group heads, helping maintain extraction quality and machine efficiency. Easytofit replacement part for technicians, baristas, and home users who need a reliable seal. Key benefits Precise fit: Designed specifically for Faema, Rocket, and group heads that match these dimensions: 73mm outer diameter (OD) x 58mm inner diameter (ID) x 5mm thick. grade silicone: Flexible and durable material that provides reliable sealing performance and a snug fit under brewing conditions. O‑ring design: Encircles the brewing head to prevent water and steam leaks, reducing maintenance and downtime. What makes it stand out Engineered for compatibility with wellknown espresso machines (Faema, Rocket) and compatible group heads, ensuring predictable fit and function. Simple, direct replacement that avoids the cost and complexity of replacing larger components. Specifications Fit: Faema, Rocket, and compatible group heads Dimensions: 73mm OD x 58mm ID x 5mm thickness Material: grade silicone Shape: O‑ring Packaging options Two O‑rings (spare included) One O‑ring plus a disassembly tool (for easier removal/installation during maintenance) Practical use scenarios Prevents leaks during morning service at a busy café: quickly a worn O‑ring to stop seepage and keep production moving. Routine maintenance for a home espresso setup: install a fresh O‑ring to restore a firm seal and keep extraction consistent. Onsite by a technician: carry a spare O‑ring and the optional disassembly tool to fix a leaking group head during servicing. Quick installation notes Remove the portafilter and clean the group area before fitting the O‑ring. If you select the O‑ring + tool option, use the tool to ease removal of the old seal and seat the ring evenly. Inspect seating and run a short flush to confirm the seal before heavy use. Choose the configuration that fits your maintenance routine and keep your Faema, Rocket, or compatible group head sealing reliably.