The service life of this coffee machine water filter is three months. It features a time dial design to help you track the operating life and remind you to replace it. This plastic water filter removes impurities and scale from water, improving overall water quality for coffee. This helps extend the life of the machine and supports the extraction of clean flavor from coffee beans. Made of plastic, it is lightweight and durable. Height: 11.8 cm. Maximum diameter: 4.5 cm. Compatible with Espresso Machines Oracle Touch BES990 - Batch 1747 and newer, Oracle BES980 - Batch 1814 and newer, Barista Pro BES878, Barista Touch BES880 - Batch 1801 and newer. Item Name: Water Filters Material: Plastic Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension differences due to manual measurement. Package Includes: 2 x Water Filters