- Set of 2 replacement O-rings for CO2 cylinders in water carbonators - High-quality EPDM material, food-grade, resistant and durable - Wide compatibility: SodaStream (Power, Easy, Crystal, MAXI, Penguin, Pure, Genesis, Jet, Spirit, One Touch, Dynamo, Revolution, Source, Play), Soda Club, Soda Trend, Cool, Jet, Classic Trend, Deluxe Trend, Tronic - Also compatible with MySodaPop, Spudelino, Brita Neo4, Wasser-Maxx, Prick I Star, Aquellness, Aarke, WasserMaxx Fun, Wassermax Deluxe and other models - Ensure a secure seal and prevent gas leaks in the CO2 cylinder - Improve the user experience and extend the lifespan of your soda machine - Simple and quick installation, no special tools required - Essential replacement to maintain the performance and safety of your sparkling water carbonator