I always wanted to try a ready made Dutch bucket, but I could not find a source with free shipping. I just bought these on eBay with free shipping, I saw this exact one on a YouTube video where a gardener grew cherry tomatoes from the 4 inch net pot filled with clay pebbles and nothing in the reservoir with a constant flow of solution. I have already proven it works, I have a 5 gallon bucket set up the same way. I guess, its a hyfrid form of Kratky and aeroponic. I notice that the inside of my bucket is always wet from condensation and the roots eventually reach the bottom of the reservoir.
I am going to use 2 feet high plastic shelves that I already have, it will be easy for me to set up the 10 Dutch buckets I just bought.