Sale! These replacement CO2 cartridges work with your Drinkworks Home Bar. Each replaceable metal cartridge contains 74 grams of beverage grade CO2. Each cartridge lasts for approximately 15 carbonated beverages Includes: 2 CO2 cartridges per box. from 1499 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available.