The Pro-Series vacuums are engineered for durability, built to tackle the toughest cleaning tasks day in and day out. With metal components reinforcing high-wear areas and a Clean Air System that safeguards the motor and fan, these vacuums are designed to last. For even greater reliability and minimal maintenance, the Pro-Series Zero incorporates Hall Sensor belt protection technology, eliminating the need for belt replacements. Included in our Commercial Loyalty Preferred plan!