Those are my favorite.How about thease 12L I can get for good price get 4 about 50 buks, and after many times root rot I'm very keen on these.
4 of these with large saucers for run off, leave for half hour the tip out.. how this sound?
Check my threads I have pictorials on how to fill them and use them to get huge root systems with more hard bud than you can trim.
I wouldn't buy anything else ever again.
They are brilliant regardless 9f what you put in them.
Stay safe
Bill284