General description The NV501 replacement brush roller, belts, wheels, and filter kit is specifically designed for the Rotator Professional Lift-Away Upright Vacuum models NV500, NV501, NV502, NV505, NV550, NV520, and UV560. This set is compatible with parts XFF500 and XHF500, ensuring a perfect fit for your vacuum. Please verify your vacuum model before purchasing. Technical specifications Compatible models: NV500, NV501, NV502, NV505, NV550, NV520, UV560 Material: Premium ultra-fine fibers and ABS for the brush roller; H13 HEPA filter; 60 density foam and textured felt for the filters Filtration efficiency: Captures 99.97% of particles as small as 0.3 microns Package contents: 1 roller brush, 1 filter, 2 pairs of sponge filter elements, 2 rubber rings, 2 wheels, 1 cleaning brush Measurement allowed error: +/- 1-3 cm Usage The replacement brush roller is designed to effectively clean area rugs and deep clean all sealed hard floors, including wood, tile, marble, and laminate. It