Frites Sauces

Hi
I am looking to buy large bottles of frites sauces like Andalouse and Samurai for an event. I don't need the really large catering ones but maybe 700g or so. At Carrefour/Delhaize the biggest they sell is usually between 400-500g.
I realise I could buy 2 of the smaller ones, but for ease of use one large one would be better.
If anyone has seen the 700g ones for sale please let me know.
Thanks.