[COMPATIBLE]: WD101 replacement brush roll and foam filter are compatible with all for HydroVac multi- vacuum, mop, and self-cleaning systems. Including for HydroVac XL WD101 WD100 WD101C and for HydroVac Pro XL AW201 WD201 WD200 WD200C WD201C, compare part model #: WDB1F2. [HIGH-EFFICIENT CLEANING]: The replacement brushroll for hydrovac unlike traditional brushrolls, they have a self-cleaning function to preserve roller and resist odors on the brushroll. WD101 roller brush made of microfiber can effectively discharge dust, large particles of dust liquid stains, etc. [WARM MAINTENANCE TIP]: Replace filter every 3 months and brushroll every 6 months to maintain your for HydroVac multi- cleaner at cleaning performance. They are washable, and cleaned by hand washing with warm water and mild soap. Let the foam and filter air dry completely before replacing it. Type:A:2pcs filter cotton Colour:As Shown Material:Plastic Package Contents: 1 * roller brush 2 * filter 2 * filter cotton Only