I think they are too expensive. I get fermenters from Crown Concepts in Oakleigh South. 30L cost under $10 and 15L cost $7.50. ...
They also have all manner of cubes, jerry cans and the likes.
Thats where I purchased my last lot of fermenters/jerrys from, very very good prices.I picked up a couple from Crown and one has a lid with no airlock hole
I was happy to get the lids without holes in them, didn't even know they offered the choice of lids with air-lock holes.