Removable and washable filter for Shark EVOPOWER We recommend washing once a month. Model number: XFF200J Compatible products: EVOPOWER Plus W30P (WV260J), W35P (WV285J), EVOPOWER W10 (WV200J), W20 (WV250JBL), W25 (WV270J), W30 (WV251J, WV251J, WV251 JLS, WV251JBZ, WV251JRD, WV251JKR, WV251JC3PO, WV251JBB8), W35 (WV280JLP, WV280JAB), EVOROBOT Cleaning System S72(RV720_NWVJ)