Karcher Paper Filter Bags for NT 45/1 Wet & Dry Vacuums, 5-Pack - - Amazon.com
Karcher 11.5 Gal. NT 45/1 Tact Professional Wet/Dry Dust Extractor Shop Vacuum Cleaner with Fully Automatic Filter Cleaning 1.145-846.0 - The Home Depot
Amazon.com: Dxyue 2 Pack Filter for Hilti VC 20 U VC 40 U UM (LF 4), for Karcher NT25 NT35 NT45 Vacuum Cleaner Accessories : Tools & Home Improvement