Aha! I was looking at this last night. I'm trying to dissuade myself from getting that along with a bit of that soil warming cable so I can ferment indoors (I went too small with my chest freezer chamber boo).
I have been looking at these too over christmas, as a newbie with loads of ignorance i was thinking that as i need 19l for a corney that this was the right size to buy? or do you normally do double corneys at a time?