This is the 5004th most frequent Russian word.
литров
"Литров" is the genitive plural form of "литр," meaning "liters" (a unit of volume).
Here, 'литров' is used to express a quantity when referring to measurements, specifically juice, with the numeral 'пять' indicating five liters.
Для вечеринки нам понадобится пять литров сока.
For the party, we will need five liters of juice.
In this sentence, 'литров' is the plural form used alongside the numeral 'три', specifying the purchase amount of milk in liters.
Пожалуйста, купите три литра молока в магазине.
Please buy three liters of milk at the store.
Here, 'литровую' is an adjective form derived from 'литров,' describing an attribute (liter size) of the 'бутылку,' bottle.