Diet Coke Bag-in-Box (BIB) fountain syrup concentrate by Coca-Cola in a 2.5-gallon format, designed for commercial soda fountain dispensing systems. This is a concentrated syrup that mixes with carbonated water to produce Diet Coke at the push of a button, making it ideal for restaurants, offices, and foodservice operations.

The 2.5-gallon bag-in-box packaging is compatible with standard bag-in-box soda dispensing equipment. At a typical mix ratio of approximately 5:1 (carbonated water to syrup), one box yields roughly 15 gallons of finished Diet Coke — approximately 160 twelve-ounce servings. The bag-in-box design minimizes oxidation and maintains product freshness through the dispensing process. Once connected, the sealed bag collapses as syrup is dispensed, keeping the remaining syrup fresh. Product has a 45-day shelf life after connection.