Premium silicone construction ensures superior heat resistance (up to 300°F/150°C) and long-lasting durability compared to standard rubber gaskets. Precision-engineered 8.5mm thickness creates optimal pressure seal for commercial-grade espresso extraction. FDA-approved food-grade material guarantees safe contact with boiling water during prolonged use. CNC-molded edges provide airtight compatibility with E61 group heads - eliminates steam leaks and pressure drops. Ideal for specialty coffee shops, home baristas, and high-volume cafés requiring consistent 9-bar performance. Injection-molded with medical-grade silicone for 50% longer lifespan than OEM parts. Beveled design enables tool-free installation in under 30 seconds - compatible with Rocket, ECM, Profitec machines.