General description vhbw offers a set of 3 flat-fold pleated filters designed for multi-purpose and 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 frequency: every 6 months Compatibility and accessories Compatible with Kärcher models: 3501, 3500, K2000E, A2001, 3501E, 3500E, 2000TE, 2000E Replacement for part numbers: 259.307, 452923, 500558, 6.904-068.0, 6.904-156.0, 454700, 0702400195 Usage These filters allow for efficient vacuuming of both dry fine dust and coarse dirt without needing to change the filter between wet and dry cleaning tasks. They are designed to capture and retain