Home Ultrasonic Cavitation Machine, Professional 4.5L Ultrasonic Cleaner with Digital Timer and Heater, 40kHz Retainer Denture and Jewelry Cleaner
- ✔1-Year Warranty✔ Backed by 1-year limited warranty, free exchange if the item is defective. Please bear in mind that lower frequencies lead to better cleaning result, but it comes with louder noises, better used for objects with flat surfaces. Higher frequencies come with lower noises and weaker cavitation effects, great for cleaning smaller objects with small holes, grooves etc. It is recommended to use cleaning machines with higher frequencies (at least over 40 kHz).