Material Plastic Product Advantages Impurities About this item Improving coffee taste: This Delongie filter cartridge contains high-quality ion-exchange resin and activated carbon, which stabilizes calcium carbonate and impurities, such as chlorine and limestone removed to improve the taste of coffee. < p>Better engine performance: The Delongie water filter improves machine performance and efficiency. Extend machine life by keeping hoses clean. Avoid clogging the coffee machine due to scale deposits. Compatible model: replaces Delongie filter models, including ECAM and ETAM type coffee machines and conventional pump coffee machines of the EC680 and EC800 series. Economical and ecological: Recyclable water filter with quick and easy installation. These filters have been tested for the effective reduction of chlorine, heavy metals and other harmful contaminants. 2 month lifespan: Replace your water filter every 2 months to ensure continuity of fresh water.