Silicone Group Head Gasket for Espresso Machines - Two Pack ✔️ Fits 2.9 in OD, 2.2 in ID, 0.29 in thick, silicone seal This silicone group head gasket is a replacement seal designed for espresso machines with standard group heads, including Rancilio Silvia and similar home barista setups. It slips in between the group head and portafilter to stop leaks and dripping, helping maintain consistent pressure during extraction. ✅ Outer diameter: 2.9 in (73.7 mm) ✅ Inner diameter: 2.2 in (55.9 mm) ✅ Thickness: 0.29 in (7.4 mm) ✅ Material: Silicone ✅ Pack size: Two-pack ✅ Color: Black Dimension Inches Millimeters Outer diameter 2.9 in 73.7 mm Inner diameter 2.2 in 55.9 mm Thickness 0.29 in 7.4 mm 💡 What is a common use for a silicone group head gasket in espresso machines? That handy seal blocks leaks and keeps brew pressure steady for reliable shots. - Provides leak-proof seal between group head and portafilter - Maintains stable brew pressure for consistent espresso extraction - Easy replacement for Silvia-style group heads and similar machines - Made from durable heat-resistant silicone