Why the distinction matters
A catalogue example is not a stock counter.
Closeout food and grocery outlet selection is different from a permanent supermarket assortment. A representative product photograph shows the subject a visitor can ask about. It does not establish a named brand, origin, weight, ingredient list, pack size, shelf position or current availability.
The failure mode is simple: someone plans a purchase around a guessed pack, then discovers that the actual unit or label is different. Ask the store contact first. If the match matters, say “exact type.” If you can work with a comparable subject, say “alternatives welcome.”
Use the package as the authority.
Pack sizes belong on the label, not in a guess. Ask for the current shelf price before you plan your purchase. For allergy information, check the actual package.