Sized to fit about 1.5L of fluid, it's actually a great size. It's smaller than I expected but it works very well.
I clean my spectacles, gold and hard gemstone jewelry, and electronics in this, and it works great.
I like to put my cleaning solutions in plastic jars and then drop them into warm water in the cleaner, it works very well.
I'm glad I got the small one, because it heats up pretty quickly and has plenty of power.