Anchor extra yield cooking cream - 12x1L carton.
https://www.anchorfp.com.au/en/products/cream/culinary-cream/anchor-extra-yield-culinary-cream.html
Hospitality supply product, available to the public.
Available in individual 1L bottle: https://www.tangofresh.com.au/collections/hospitality-supplies/products/cooking-cream-extra-yield-1l-bottle