The AquaClean Calc & Water Filter is designed for use with Philips, Saeco, and Gaggia coffee machines, specifically models CA6903/22. This filter comes in a pack of 4 and is made of ABS plastic in a white color. It is suitable for use with cappuccino machines, bean-to-cup coffee machines, and espresso machines, providing clean and fresh water for your brewing needs. With a battery power source, this filter is easy to install and maintain, ensuring your coffee maker continues to produce high-quality beverages. Made in Estonia by Philips Saeco, this water filter ensures your coffee experience is always exceptional.