Generator, Ultrasonic, 500 watt, Crest, 120v #S739600

(3) Crest Tru-Sweep ultrasonic generator, model 4G-500-6NA, 120 volt, 8 amp, 500 watt power. Serial numbers 0603-G-063; 0603-G-058; 0603-G-057; 0603-G-049; 0603-G-143; 0804-G-216.