Do you have mineral water?
mi-ne-RA-le — four syllables; stress on the third. The 'r' is lightly rolled.
Use this in summer or after buying cigarettes when you're thirsty. Tabaccherie in tourist areas frequently sell cold drinks from a fridge.
'Acqua minerale' is the standard Italian term for bottled water. You might add 'naturale' (still) or 'frizzante' (sparkling) to specify. While not a traditional tabaccheria product, cold drinks are increasingly common in these shops, especially in urban and tourist settings.
Avete acqua frizzante?
Do you have sparkling water?
'Frizzante' = sparkling/fizzy
Ha qualcosa da bere fresco?
Do you have anything cold to drink?
General question for cold beverages
Avete le bibite in frigorifero?
Do you have cold drinks in the fridge?
'Bibite' = soft drinks; 'frigorifero' = refrigerator
Italy is one of the world's top consumers of bottled mineral water. Italians typically specify naturale (still) or frizzante (sparkling) — the latter being far more popular than in most English-speaking countries. Brands like San Pellegrino (sparkling) and Levissima or Ferrarelle (still) are widely recognised.