Buy K 3.99M PLUS-(1.423-235.0) Replacement Tool Parts | K 3.99M PLUS-(1.423-235.0) Diagram
vhbw 3X Anti-Calc Filter Cartridge Compatible with Kärcher K 3.99 M Plus, K 3.99 M Plus T 100 Steam Cleaner with 3/4" Water Connection : Amazon.co.uk: Home & Kitchen