Outperforms rubber seals with heat resistance and wear proof properties Features UV / oxidation resistance for extended 5+ year service life, maintaining sealing integrity through continuous use without deformation Ideal for small cafes, this 30 piece set covers multiple maintenance needs including boiler nozzle plugs and valves O rings This silicone seal replacement set is specifically designed for automatic coffee machines, ensuring perfect compatibility with boiler outlets and extraction units User friendly design allows quick replacement without professional tools or technical skills The precisely engineered shape creates seal upon installation, saving maintenance time while meeting coffee machine repair needs Crafted with food grade silicone that withstands temperatures from 40°C to 200°C and 1.5bar pressure Maintains excellent elasticity and sealing even during prolonged high temperature operations, reducing leakage issues by 90% compared to worn out seals