General description vhbw offers a set of 2 flat pleated filters designed for multi-purpose industrial vacuum cleaners. These precision-fit filters ensure easy removal and exchange, making them compatible with both wet and dry vacuuming. They help maintain a dust-free environment, making them ideal for allergy sufferers. Technical specifications Filter class: L - M Dimensions (length x width x height): 21 x 11.5 x 5.6 cm Weight of each filter: 130 g Material: paper / plastic Form: rectangular Colour: orange / yellow Washable Compatibility and accessories Compatible with Kärcher NT 22/1 Ap BP Compatible with Kärcher NT 351 Eco-HO Replacement for Kärcher 6.904-068.0, 6.904-156.0 Usage Suitable for both wet and dry vacuum cleaning without needing to change the filter in between. Replace filters every 6 months or when they no longer clean effectively. Other information Content of delivery: 2x flat-fold filter These filters have a high dust-holding capacity for efficient dust capture and