Seagram's Tonic Water Bag-in-Box (BIB) Syrup is a 2.5-gallon concentrate pouch designed for commercial soda fountain systems and high-volume beverage dispensing. The syrup delivers the classic, crisp, and caffeine-free tonic water flavor that Seagram's is known for, with the characteristic hint of quinine bitterness that makes it a staple mixer for bars, restaurants, and foodservice operations.

The bag-in-box format uses a standard Coca-Cola BIB connector for commercial soda fountain machines and is also compatible with home systems such as SodaStream using a Coca-Cola BIB tap valve adapter. The recommended mix ratio is 5 parts carbonated water to 1 part syrup, yielding approximately 15 gallons of finished tonic water from each 2.5-gallon bag, making it a highly cost-effective format for high-volume venues.