I've had good luck with these.
It takes about 1050mL to fill, and if you have the lid fully pushed down, and you keep pressure on it when you invert, it hardly leaks (a drop or two at worst, for me).
It fills a little slow, but not too bad. As a consequence of the slow fill, I make sure my developer dilutions let me set devel. time to > 3 minutes.
I use Besseler drums when I've only got a couple of sheets.
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