1: Improve coffee taste: The filter element of this coffee machine contains high-quality ion exchange resin and activated carbon, which can stabilize impurities such as calcium carbonate, chlorine, scale, etc., thereby improving the taste of coffee. 2: Protect the machine: The water filter of the coffee machine filter element improves the performance and efficiency of the machine. Keep the pipes clean to extend the life of your machine. Prevent limescale build-up from clogging your coffee machine. 3: Lifespan: Replace the water filter every 2 months to ensure a continuous supply of fresh water. 4: Compatible Models: Replaces Delongie filter models including ECAM and ETAM coffee machines as well as traditional pump coffee machines in the EC680 and EC800 series. 5: Economical and environmentally friendly: Recyclable water filter, quick and easy to install. These filters are tested to effectively reduce chlorine, heavy metals and other harmful contaminants. Compatible with Delonghi