Food-Grade Material:Manufactured from high-quality, food-grade stainless steel that is to , high temperature and daily wear. Built to withstand frequent backflushing, cleaning and long-term professional use. 51.5mm Group Filter Shower Screen:Designed as a direct replacement for 51.5mm espresso machine group filters, this shower screen helps even water distribution over the coffee puck for more consistent extractions. Enhanced Extraction Performance:The perforated shower screen promotes uniform water , improving flavor clarity, crema formation and overall espresso consistency. A great upgrade or replacement part to maintain optimal brewing performance. Wide Compatibility:Compatible with many commercial and semi-commercial espresso machines, Ideal for cafés, restaurants, offices and home baristas using professional-style machines. Easy Installation and Maintenance:Simple to install in your existing group head with basic tools. Smooth design makes it easy to rinse and clean, helping to reduce coffee residue build-up and extend the lifespan of your espresso machine components.