General description vhbw offers a set of 2 flat 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 are ideal for allergy sufferers, creating a dust-free environment while efficiently capturing and retaining dust. 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: 452923, 500558, 259.307, 6.904-068.0, 6.904-156.0, 454700, 0702400195 Usage Both wet and dry vacuum cleaning can be performed without needing to change the filter in between. It is recommended to replace the filters when they no longer clean effectively,