Key features PERFECT FIT FOR YOUR BREVILLE ESPRESSO MACHINE: Precision-molded 54mm grouphead gasket (5.5mm thickness) matches OEM specifications for Breville Barista Express, Bambino Plus, Dual Boiler, and Oracle. Ensures proper portafilter lock-in and consistent 9-bar extraction pressure. Compatible with Breville 878/870/860/880/810/840/450/500 and Sage 880/878/875/870/810/500 series FOOD-GRADE SILICONE THAT LASTS YEARS, NOT MONTHS: Heat-resistant up to 230°C/446°F with 70 Shore A hardness. Unlike cheap rubber gaskets that crack and harden after weeks, our silicone maintains flexibility and sealing integrity through thousands of brewing cycles. No toxic chemicals leaching into your espresso STOP LEAKS AND PRESSURE LOSS INSTANTLY: Worn gaskets cause portafilter leaks, inconsistent shots, and weak crema. Our precision-sealed gasket restores airtight pressure for rich, full-flavored espresso with thick golden crema. Experience the difference a proper seal makes in every cup 5-MINUTE DIY INSTALLATION, NO TOOLS NEEDED: Simply remove the old gasket and press the new one into place. No professional service call, no machine downtime. Watch your favorite barista-quality espresso flow again in minutes. Detailed instructions included for first-timers 2-PACK VALUE: KEEP A SPARE, SAVE ON REPAIRS: Two gaskets per pack means you always have a backup ready. Replacing your gasket every 6-12 months keeps your espresso machine performing like new. At a fraction of professional service costs, this is the smartest maintenance investment for your Brevile Product Name54mm Silicone Grouphead Gasket – Replacement Steam Ring for Breville & Sage Espresso MachinesProduct OverviewThis 54mm silicone grouphead gasket is a precision-engineered replacement part designed for Breville and Sage espresso machines. It serves as a critical sealing component between the portafilter and the grouphead, ensuring optimal brewing pressure, preventing water leaks, and maintaining consistent espresso extraction. Manufactured from high-grade silicone, this gasket offers superior durability and heat resistance compared to standard rubber alternatives.SpecificationsParameter SpecificationDiameter 54mmThickness 5.5mmMaterial Food-grade silicone (high-temperature resistant)Compatibility Breville & Sage espresso machines with 54mm groupheadPack Quantity 2 piecesHeat Resistance Up to 230°C / 446°FHardness 70 Shore A (±5)Compatible ModelsThis gasket is compatible with the following Breville and Sage espresso machine models:Brand Compatible ModelsBreville 878 (Barista Pro), 870 (Barista Express), 860 (Barista), 880 (Oracle), 810 (Bambino Plus), 840 (Infuser), 450, 500Sage 880 (Oracle), 878 (Barista Pro), 875 (Barista Express), 870 (Barista Express), 810 (Bambino Pl Free shipping included. 30-day hassle-free returns.