Made in Germany, the AUTOMATIC X series are the best commercial-grade, upright vacuum cleaners in the world because they are technically advanced and uniquely easy to use! There are two models, offering a choice between power head widths . . . the 12-inch AUTOMATIC X4 and the 15-inch AUTOMATIC X5. They have truly automatic height adjustment, to ensure optimum performance on carpets and hard-floor surfaces along with superb pet hair removal.