[Improve Coffee Taste] Coffee is made up of about 95% water, so the water you use has a significant impact on the taste. This filter cartridge contains high quality ion-exchange resin and active carbon which stabilizes the calcium carbonate and removes impurities which impair coffee flavour. [Protect Your Coffee Machine] Water Filter improves machine performance and efficiency. Extend life of the machine by keeping pipes clean. Prevent congestion of coffee machines due to calcium deposits. [Safe and Environment Friendly] The effective reduction of chlorine, heavy metals and other harmful contaminants. Retains minerals and fluorides that are important for maintaining a balanced diet and healthy lifestyle. [2 Months' Lifespan] Please replace your Water Filter every 2 months for continued clean and filtered water. Type: Coffee Maker Parts Model Number: For Delongi coffee machine spare parts Size: Height: 15.7 cm Material: Activated carbon Color: White Package Contents: 4 x Filter wick Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.