Go for the gusto and make your own 600W ultrasonic cleaner (5-7 gallons).
10x 60W transducers @40Hz with 600W generator. Costs around $450 USD for the parts and shipping thru
Ultrasonic Cleaners*|*Beijing Ultrasonic You will need a 1-2mm (max) ss tank. Hit the scrap yards. Making mine right now. News at 11 ...