Good quality material: The steam seal uses heat resistant rubber washer and elastic washer working together as a pressure ring to stop steam leaks during use. Advanced gasket system: The coffee extraction gasket ring works with an efficient beer gasket, providing a washer of shaped fit that prevents leaks of the group head while maintaining a reliable waterproof component. Multipurpose compatibility: With a standard size washer and compatible ring, this coffee machine replacement part works as a common group head washer, delivering reliable performance on multiple compatible models. Easy installation and included kit: Designed for efficiency, quick installation coffee washer and easy swap ring provide no problem repairs, complemented by a handmade kit and replacement gasket into the twopack coffee machine washer collection, ensuring seamless functionality and user satisfaction. What's included and compatibility notes: This twopack coffee machine washer collection includes the coffee washers, a handmade kit, and a replacement gasket, designed to fit a standard size and be compatible with multiple models that use a common group head washer. Use scenarios: Home espresso setup: worn washers and gaskets to stop steam leaks around the group head and restore reliable extraction. Multiplemodel maintenance: Ideal for households or offices with different compatible machines, allowing one replacement set to cover several models. Routine spare parts: Maintain a readytoinstall kit for quick repairs, minimizing downtime during daily coffee preparation.