Features: Ensure perfect seals and maintain the rich flavor of your coffee with our high efficiency silicone sealing rings, designed to prevent leaks and withstand high temperatures, suitable for various models. Crafted from wear resistant silicone, this sealing rings is rigorously tested for long term use without deformation, ensuring consistent coffee quality and reducing frequent replacements. Ideal for coffee enthusiasts seeking to brew coffee, cafés owners aiming to enhances machine performances, and professional technicians maintaining machines. Perfect for home kitchens, cafés, and offices, this accessory enhances coffee making experiences by ensuring each cup meets high standards of consistency and taste. Easy installation without professional tool, this sealing rings offer hassle frees replacement process, saving on repair costs while providing hygienic and smooth surfaces for easy cleaning. Specifications: Component: Silicone Applicable Model: For ECO311 ECP33.21 ECZ351/36.31 Inner Diameter: Approx. 1.25inch(3.2cm) Outder Diameter: Approx. 2.91inch(7.4cm) Package Includes: 1x Sealing Gasket Or 2x Sealing Gaskets note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.