Yeah bro, sure can! Can get 500gm fresh pasteurised in a carton from Woollies for like $5, or 980ml frozen pasteurised in a bottle from some Woolies for about the same IIRC. Coles also sell 950ml frozen pasteurised in a bag.
For the record, 250ml (1 cup) has the equivalent egg whites of roughly 9 eggs' whites.
Pretty awesome for when you're cutting, as you can still make half decent omelettes with them along with some diced short cut bacon and diced red onion.
Of course we all know that whole eggs are significantly more nutritious than just the whites