The Karcher paper filter bag pack includes five paper filter bags for use with the following Karcher Vacuums.
2201F, A 2201, A2231 pt, A 2251 Me, 2901 F, A 2901, 3000 plus, A 3100, K 2150, A 2204, A 2234 pt, A 2254 Me, A 2504, A 2534 pt, A 2554 Me, A2604, A2654 Me
All filters are easily replaced