Sosman,
Yep, that's what they call at bunnings a 25L open head camper. It was $18, plus $2 for the tap. I really only use it to CC or for secondary. It does have an O-ring but i can't get a seal like i do on the fermenters from the HBS. I even had to trim down the poor joins in the plastic moulded lip to get a better seal. The plastic is also not as good, and the plastic thread on the tap stripped itself in no-time.
It is more compact, i will give it that!.
Unless size/space is a concern, i would spend the extra $16 and get a good quality one from the HBS complete with airlock, grommet.