- High-Quality Materials: Our espresso machine seal is crafted from premium, BPA-free food-grade silicone. This high-temperature resistant and wear-resistant material endures temperatures ranging from -65°F/54°C to 450°F/230°C, significantly prolonging your coffee machine's lifespan. - Superior Sealing Technology: The unique O-ring design of our sealing rings, compatible with Sage The Barista Express, fits perfectly in the grooves of your Breville/Sage coffee machine. This strong seal effectively prevents moisture leakage, keeping both your machine and brewing environment clean. - Efficient Cleaning Assurance: Our 54 mm silicone steam ring is free from harmful elements, actively inhibiting bacterial growth inside your coffee machine. This guarantees that every cup of coffee is brewed under hygienic conditions, ensuring the best taste and quality. - Wide Compatibility: The 54 mm silicone steam ring is compatible with various espresso machines, including Breville models 870, 878, 880, 860, 840, 810, 450, 500, and Sage models 500, 810, 870, 875, 878, and 880. Enjoy your favorite coffee seamlessly with our versatile seal set. Use Scenarios: 1. Perfect for daily coffee enthusiasts looking to maintain their machine's performance while ensuring a clean brew. 2. Ideal for home baristas who want to enhance their coffee experience without worrying about leaks or contamination. 3. Essential for anyone using Sage or Breville espresso machines, ensuring optimal flavor and reliability with every cup.