The Basic 9 Litri ultrasonic tub washes dental, medical, veterinary, and other instruments ultrasonically. The allows areas that are often difficult to access manually on the instruments being treated to be thoroughly cleaned. By using this ultrasonic tub, contaminated instruments need not be handled directly until after they have been completely cleaned and sanitized. Instruments to be cleaned are placed in a removable basket in the tub which is filled with a detergent solution. Once the unit is turned on, ultrasonic activity will commence as soon as the heating process is underway and the detergent is being heated. The process stops when a predetermined temperature has been reached.