Universally Compatible: This reusable coffee filter fits universal brewers, including B30, B40, B50, B60, B70 series, and more. Easy to Use: No need to remove or replace the portafilter; features a permanent, built-in stainless steel filter. Compatible Models: Reusable K-cups are suitable for home brewers like B30, B40, B50, B60, B70, K10 MINI Plus, K15, K40/45, K55, K60/65, K70/75/79. Healthy and Convenient: Made from durable stainless steel and plastic, this reusable K-cup features an improved swivel lid for enhanced durability and easy cleaning. No need to remove or replace the filter holder. Save Money and the Environment: Using this refillable K-cup can save you up to 80% compared to buying disposable K-Cup pods. Significantly reduces landfill waste. Color: Gray Material: Plastic Package Contents: 3 x Filter Elements Please note: Other products are not included. Due to lighting and different displays, the color of the item in the picture may vary slightly from the real thing. The allowed measurement error is +/- 1-3 cm.