54mm Silicone Steam Ring for Breville Espresso Machine – Replacement Grouphead Gasket Compatible with Breville 878/870/860/880/810/840/450/500 & Sage 880/878/875/870/810/500 ， 2 Pack

["1. Precision-Matched OEM Specifications – 54mm diameter with 5.5mm thickness, precision-molded to meet original equipment manufacturer (OEM) standards. Ensures proper portafilter lock-in and a tight, leak-proof seal for consistent 9-bar extraction pressure.","2. High-Temperature Silicone Construction – Manufactured from food-grade silicone with heat resistance up to 230°C / 446°F and 70 Shore A hardness. Maintains flexibility and sealing integrity under repeated thermal cycling, resisting cracking, hardening, and deformation.","3. Wide Compatibility with Breville & Sage Models – Direct replacement compatible with Breville 878/870/860/880/810/840/450/500 and Sage 880/878/875/870/810/500 series espresso machines, including Barista Express, Bambino Plus, Dual Boiler, and Oracle.","4. Tool-Free DIY Installation – Simple, tool-free replacement process that removes and installs in under 5 minutes. No professional service required, minimizing machine downtime for home baristas.","5. 2-Pcs for Long-Term Value – Includes two gaskets per pack, providing an immediate replacement and a spare for future maintenance. A cost-effective solution for preserving optimal brewing performance."]