I bought the VEVOR 15LTR Ultrasonic Cleaner and I am very happy with it. I’ve used it so far to clean disassembled Holley 4150/60 4bbl carburetors. Muscle car enthusiasts know these classics as the biggest in the business, and the main body fits well with room to spare. A smaller unit may not be big enough. I think an ultrasonic cleaner is a must if you REALLY want to totally rebuild a carburetor! How well does it work? Think of a dish washer. Your dishes may look cleaner if you just use water, but you really need detergent to get them really clean. Want to remove rust or grease, even paint? Go on the web and get the right stuff. You’ll be amazed! Finally, I don’t think you’ll find a cheaper, easier to use unit out there! Oh, and how clean was that main carburetor body? My pet baby corn snake took a nap in it! (picture).