Made of high-quality materials, more durable<br> Exquisite and delicate, highly match with the equipment<br> The pre filter is crucially important for suction power and suction efficiency, you need to deep clean or replace the filter periodically to prevent suction loss<br> The pre filter is rinsable, please rinse under cold running water, then give it 24 hours to be dried completely before reinstalling<br> Solid and durable, long service life<br> Easy to install and reliable to use<br> Specifications:<br> Replaces #8542023991 pre filter of your Cordless vacuum.<br> Compatible models:<br> For Tineco A10/A11 Hero, A10/A11 Master, PURE ONE S11 Series Cordless Vacuum Cleaners.<br> Colour:As shown<br> Material:plastic<br> Package Contents:<br> 1 x roller brush<br> 2 x Pre-filter<br> 2 x Post-filter<br> 1 x clean brush<br> Only the above package content, other products are not included.<br> Note: Light reflection 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.