Complete tank 4L - Kärcher SE 4001 Kärcher steam cleaners - SOSav English
Kärcher SE 4001 Carpet Cleaner - YouTube
HQRP 2-pack Cartridge Filter for Karcher SE 4000 series SE 4001 / SE 4001 Plus / SE 4002 / SE4001 / SE4002 / SE4001+ Carpet Cleaner, 64145520 Replacement + HQRP Coaster