[COMPATIBLE]: The WD101 replacement brush roll and foam filter are compatible with all HydroVac 3-in-1 multi-surface vacuum, mop and self-cleaning systems. Including for HydroVac XL WD101 WD100 WD101C and for HydroVac Pro XL AW201 WD201 WD200 WD200C WD201C, compare model part number: WDB1F2. [HIGH EFFICIENT CLEANING]: The replacement brush for Hydrovac unlike traditional brushes, has a self-cleaning function to preserve the roller and resist odors on the brush. The WD101 microfiber roller brush can effectively remove dust, large particles of liquid stains, etc. [VALUABLE PACKAGES]: Contains 2 roller brushes, 2 foam filters and 1 brush for HydroVac XL and XL pro 3-in-1 vacuum cleaner. The replacement brush plays an important role in your HydroVac vacuums, so choosing a high-quality and maximum-efficiency brush can help you save more money. [WARM MAINTENANCE TIP]: Replace the filter every 3 months and the brush every 6 months to keep your HydroVac 3-in-1 multi-surface cleaner at peak