Crest Powersonic .75 gal Benchtop Cleaner (Model 230)

It has 3 screens on the front to adjust your Timer, Heat, and Power. Crest's Powersonic rugged industrial-strength performance gives you consistent quality at a benchtop price. Crest's exclusive Powersonic feature ensures uniform cleaning throughout the tank by sweeping the ultrasonic frequency 3 kHz, creating overlapping ultrasonic waves.