Siemens Fridge Freezer Water Filter. Genuine part number 643046 5060477170960 | eBay
Amazon.com: Fit aqua AC-IL-A Original in-line Activated Carbon Cartridge for Fridge Samsung, LG, AEG, Siemens, GE, Daewoo, Haier etc. External Filter by Side with QC Connections Made in EU : Electronics