Amazon offers up to 35% off select iSonic ultrasonic cleaners, including this iSonic F3900 Ultrasonic Cleaner for $27.83. Shipping is free on orders of $49 or more. The same item sells for $44.99 at Bed Bath and Beyond. Other iSonic items on sale at Amazon include:

• iSonic P4810 2.1-Qt. Commercial Ultrasonic Cleaner – $61.90
• iSonic P4820-WSB 2.6-Qt. Commercial Ultrasonic Cleaner – $63.65
• iSonic P4830 3.2-Qt. Commercial Ultrasonic Cleaner – $100