General description vhbw offers a set of 2 flat-fold 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 (L x W x H): 21.3 x 11.5 x 5.5 cm Weight of each filter: 139 g Material: plastic / paper Form: rectangular Colour: yellow / orange Washable: Yes Recommended replacement: every 6 months Compatibility and accessories Compatible with Kärcher NT351 Profi, NT 351 Eco, NT3501E, NT3501, NT3500E, NT3500 Replacement for: 452923, 500558, 259.307, 6.904-068.0, 6.904-156.0, 454700, 0702400195 Usage These high-performance filters allow for efficient dust capture and retention, making them suitable for both wet and dry vacuum cleaning without the need to change filters in between. They achieve excellent filtration of dry