Made in Germany, the ESSENTIAL G series are super durable, technically advanced, commercial-grade upright vacuum cleaners! There are two models, offering a choice between power head widths . . . the 12-inch ESSENTIAL G1 and the 15-inch ESSENTIAL G2. Both power head sizes have four-level manual height adjustment, effectively clean carpets and hard-floor surfaces, and have excellent pet hair removal. The two models feature an electronic controller that acts as a brain, alerting users to a worn brush or when brush height is set too high for optimal cleaning. Also, the vacuum shuts off automatically when a full bag, a clog, or a brush roller obstruction occurs, which protects the motor, belts and carpets from damage.