Replacement filter compatible with QX9: including 2 pre-motor filters and 2 hygienic filters. With high quality and durability, you get the high performance of your QX9 vacuum cleaner Effectively absorbing and filtering the dust, preventing the dust from entering the motor. Improve the suction power Practical filter: it effectively increases the suction power when changing this filter, and achieves better cleaning results This filter is easy to remove from the vacuum cleaner and install. Compatible for QX9 vacuum cleaner. It also comes with a cleaning brush to clean the filter. Compatibility: Compatible For QX9-1-50IB, QX9-1-ALRG, QX9-1-ANIM vacuum cleaners Colour:Blue+black Material:plastic Package Contents: 2 * front filters 2 * rear filters 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.