Dequalitier is a chest that downgrades high quality items to its own quality. How to use: craft dequalitier of, say, rare quality. If you put a legendary item into it, it will convert it to rare item. Putting an item with lower than rare quality won't affect it at all. Also works with modded quality levels.

The mod is quite the same as Quality Down-Binning and in fact was inspired by it. But this mod supports modded quality levels. Mods are compartible, if you'd like you can use both togather.