Optimal filtration performance: the washable filter ensures optimal dust absorption and ensures a long service life of the FX9 / QX9. Easy to clean and fit: the filter can be quickly and easily removed, replaced and washed. Twin pack: While one filter dries, the second replacement filter can be used while the filter is dry, no waiting times. Regular filter replacement: for optimal filtration and strong suction power, regular filter replacement is recommended. Practical box contents: 2 x washable pre-motor filters - suitable for all FX9 and QX9 models. Colour: black + white Material: ABS Package Contents: 2 * Filter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.