GuruNanda Retainer & Aligner Cleaning Pod for Retainers, Dentures, Mouthguards, Aligners- 3 Modes, 45kHz Ultrasonic Cleaner, 190 ml Capacity

Got one for $30 from a nearby Walmart. It’s been working great for 6+ months. Run it for 5 minutes every time I eat. No reason to spend a ton https://www.walmart.com/ip/Denture-Retainer-Ultrasonic-Cleaning-Pod/14387558688