Universal for 1.0, 2.0 and coffee machines. Compatible with all old coffee machines produced after 2007: for single cup reservoir brewing, k-duo, elite, classic, ultra, special edition, ultimate, K40, K45, K50, K55, K70, K200, K250, K400, K475, K575, BWF100, etc. Note: not suitable for . Fine charcoal filtration - high-quality organic activated carbon particles are designed to increase contact with water and maximize filtration and purification efficiency. Replacement water filter parts are made of high-quality charcoal, which can purify harmful pollutants in tap water. Microgrid material - the precisely designed filter element microgrid material prevents activated carbon from escaping and blocking the coffee machine. Improve the taste of coffee - activated carbon is specially used to improve the drinking taste of beverages by removing impurities such as calcium, chlorine, sediment and other odors, creating a purer and better tasting coffee while retaining essential minerals. Easy to change: simple to install and start enjoying great-tasting coffee. Color: as shown Material: Non-woven fabric + activated carbon Package Contents: 6 x coffee machine filter elements Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement allowed error is +/- 1-3cm.