HQRP Dry Flat Filter compatible with Karcher 6.904-367.0, 6.907-012.0 fits KM 70/30 C Bp, NT 20/1 Ap, NT 35/1 Ap, NT 35/1 Tact, NT 45/1 Tact, NT 361 ECO, NT 561 ECO, NT611 ECO Vacuum Cleaners - Walmart.com
Karcher 6.904-367.0 Flat Pleated Filter Dust Class M - - Amazon.com
Karcher Fleece Bags for T 11/1 Classic (Pack of 10) 6.904-084.0