Premium Silicone Material: Crafted from superior quality silicone, this group head seal offers exceptional heat resistance and durability. It withstands temperatures ranging from -65°F to 450°F, ensuring optimal performance under conditions. Enhanced Heat Resistance: Designed to endure extreme temperatures, our silicone steam ring maintains its integrity from as low as -65°F up to 450°F. This feature guarantees that the seal remains effective, providing a reliable barrier against heat and pressure. Effortless Installation: Replacing your coffee machine's group head seal is a breeze with our product. The simple installation process not only saves time but also enhances the efficiency and smooth operation of for your coffee machine. for Machines: Specifically engineered to match the specifications of for coffee machines, this seal ensures a snug fit and optimal functionality. It replaces worn or seals to restore your machine's efficiency. Optimal Sealing Performance: Our soft yet silicone steam ring adapts perfectly once installed, preventing any water overflow. This tight fit ensures that every espresso shot you pull is of the highest quality, with no loss of pressure or heat. Color: Blue Material: Silicone Package Contents: 4 * washers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.