Numatic TT1535 Twintec Scrubber Dryer. The smallest in Numatic's range of Twintec cleaning machines. This cable operated Scrubber Dryer is both small & compact. If you need a scrubber dryer that is easy to use and allows you to operate in narrow walkways and tricky areas, the TT1535 is ideal. It has exceptional maneuverability when in use. Compact and easy to operate with exceptional manoeuvrability.