Specifically designed for SIMONELLI APPIA I APPIA II coffee machines, this cone shaped silicone gasket creates perfect sealing to water leakage during brewing, maximizing coffee flavor and extraction while maintaining optimal pressure Laboratory tested with less than 0.5% leakage probability, this brew head seal effectively protects internal coffee machine components from water damage by keeping dry and safe during operational Selected from silicone that outperforms rubber seals with superior wear resistance, ensuring extended service life and consistent over time Withstanding high temperatures better than traditional rubber seals, this gasket maintains flexibility without hardening or losing elasticity even after prolonged exposure to heat and coffee oils Perfect for various settings including home kitchen break rooms and professional cafes, sealing for coffee enthusiasts and baristas to brew perfect tasting coffee every time