- Optimized Pressure Regulation: Upgrade your espresso machine with the 3-piece 9 bar OPV spring set, designed to replace the factory spring. This adjustment allows for precise pressure control, ensuring optimal espresso extraction. - Ideal Extraction Performance: With a consistent pressure of 9 bar, these replacement springs deliver superior extraction results. Standard factory settings of 15 bar may be excessive for espresso portafilter baskets, often leading to over-extraction. - Wide Compatibility: This spring set is compatible with all recent coffee machine models, particularly those introduced in 2019. Crafted from durable stainless steel, it enhances pressure control for better brewing consistency. - Simple Installation: Replacing the springs in the relief valve is straightforward. Follow the included step-by-step instructions to easily swap out the factory spring for your preferred weaker spring. - Customizable Pressure Settings: Tailor the pressure to suit your taste preferences, enabling you to achieve the perfect espresso extraction every time. - Specifications: Designed for all newer coffee machines, particularly models released after 2019. Made from high-quality stainless steel for durability and performance. Use Scenarios: 1. Perfect for home baristas looking to enhance their espresso-making skills by fine-tuning machine pressure. 2. Ideal for coffee shops wanting to deliver consistent espresso quality across different machines. 3. Beneficial for coffee enthusiasts experimenting with various coffee beans and grind sizes to achieve their preferred flavor profile.