Amazon.com: Coffee Machine Filter Compatible with Philips CA6903 Aqua Clean Water Filter for Fully Automatic Coffee Machines Dedicated Anti-Lime Scale Water Purifier (Pack of 4) : Home & Kitchen
4-Pack PrimaPure Espresso Coffee Machine Water Filter Replacement For Philips Saeco AquaClean CA6903 Certified To NSF / ANSI 42 by IAPMO R&T - Walmart.com
Saeco Aqua Clean Calc & Water Filter for Xelsis SM7684 and PicoBaristo - Espresso Machine Experts