GrowlerWerks absolutely knocked our socks off with their new batch of brew-saving mini-kegs — and we've already drunk so much from 'em that we ran out of CO2 cartridges. This pack includes 10 food-safe CO2 refill cartridges GrowlerWerks growlers, so you (and we) can continue pouring up perfectly frothy goodness for the foreseeable future.

• Includes 10 16g food-safe CO2 cartridges
• Compatible with 128 oz uKeg and uKeg Go growlers only