Smart Sensor? technology provides fail-safe hand detection. Touch-free system helps prevent the spread of germs and bacteria. Controlled-volume dispensing minimizes waste and over use. Reliable, low-maintenance unit delivers clog- and leak-resistant operation. Operates on four D batteries (sold separately). Dispenser Type: For Liquids; Capacity (Volume): 1,600.000 mL; Color(s): Polished Chrome/Black; Mounting: Counter Mount.