Amazon.com: PHILIPS AquaClean Original Calc and Water Filter, No Descaling up to 5,000 cups, Reduces Formation of Limescale, 2 AquaClean Filters, (CA6903/22): Home & Kitchen
AquaClean - No descaling up to 5000 cups* - YouTube
Amazon.com: Coffee Water Filter Compatible with Philips AquaClean, CMF009 CA6903, Clean Filter Philips for Coffee Machine Water Filter, 4 Pack : Home & Kitchen