1.Wide compatibility: Compatible with DeLonghi coffee machines, including DLSC002, ECAM, ESAM, ETAM, BCO410, BCO420, EC680, EC800, EC820, BEC850, MEC860, CFL-950, SER3017, and Part No. 5513292811. Designed for a perfect fit, ensuring seamless filtration performance. 2.Enhance Coffee Flavor with Advanced Filtration: Our premium DLSC002 replacement filter removes chlorine, lime, and impurities, using high-quality activated carbon and ion-exchange resin. It stabilizes calcium levels, reducing water hardness and enhancing coffee taste and aroma, so every cup is smooth and flavorful. 3.Prolong Your Coffee Machine's Lifespan: Built with activated carbon and ion exchange resin, this filter reduces scale buildup, keeping your machine's internal pipes clean. This prevents clogging, enhances performance, and extends the machine's lifespan. Each set includes 4 replacement filters, providing long-term value and savings. 4. & Cost-Effective: Made from recyclable materials, this DeLonghi-compatible filter is for both your machine and the environment. It effectively reduces heavy metals and contaminants. Before use, soak in fresh water for 5 minutes or rinse under running water for 30 seconds to remove excess carbon.