Fits only Shark NV450 NV451 Rotator Professional Vacuum This is an OEM part, # 196FFJ450 This item is a wearable part. Per manufacturer, normal wear and tear of wearable parts, which require regular maintenance and/or replacement to ensure the proper functioning of your unit, are not covered by this warranty. For Return and Refund, please refer to Amazon’s Return and Refund policy. Shark Motorized Power Floor Nozzle Head for NV450 NV451 Rotator Vacuum