Material and sealing design: Heat resistant rubber and an elastic sealing washer work together as a pressure sealing ring to stop steam leakage and staining during use. Upgraded brew seal: The coffee extraction seal ring works with an efficient brewing seal to provide a tight sealing washer, helping prevent leaks at the group head. Multipurpose compatibility: These coffee machine replacement parts include a sealing ring and a compatible washer that act as a common group head washer, delivering reliable sealing performance across multiple models. Easy installation and value pack: Quick Install design and an easy swap sealing ring mean minimal downtime and no complicated repairs. Includes a handmade kit and a costeffective replacement seal set in two packs to ensure seamless function and user satisfaction. Use scenarios and applications: Replacing worn seals on an existing espresso machine to restore steam sealing and prevent leaks. Upgrading seals on compatible models to improve durability and sealing performance during extraction. DIY maintenance for home, office, or small cafe espresso machines to maintain consistent operation. Key attributes at a glance: Material: heat resistant rubber and elastic sealing washer Function: pressure sealing ring to prevent steam leakage Compatibility: suitable for multiple compatible models with a common group head washer Installation: quick install, easy swap, includes kit and twopack replacement seals Performance: reliable sealing across uses to sustain proper brewing pressure and reduce staining