Material and extraction performance Made of food grade polypropylene (PP) and stainless steel to provide an even flow of coffee through the filter and preserve taste. Durability and design Durable built in permanent stainless steel mesh filter to extend use and reduce need for replacements. Reusable filter compatibility Reusable coffee filter for machines; compatible with models including U, Milk, Gran, Concept and other listed models. Refillability and cost efficiency Refillable and reusable; lowers the cost per cup and helps deliver better brews over time. Use scenario 1: everyday home brewing Ideal for daily use in home coffee machines that accept reusable filters; supports consistent extraction and reduces paper waste. Use scenario 2: office or shared spaces Suitable for office settings or shared kitchens; enables multiple cups without frequent filter purchases while maintaining flavor. Use scenario 3: travel or event setup Lightweight and reusable for occasions where minimizing disposable items is desired and compatible machines are available.