While the system was previously sold at Walmart and Target , most major retailers no longer stock the 1-gallon refills.
You can try contacting Anheuser-Busch directly at 1-877-97-DRAFT (1-877-973-7238) or 1-800-DIAL-BUD to check for any remaining stock or reimbursement programs for the discontinued hardware. where to buy draftmark refills
Some enthusiasts in homebrewing communities have experimented with refilling the original 1-gallon containers, though this is not supported by the manufacturer and requires specific tools to maintain carbonation and hygiene. Draftmark 1-Pack Tap System - Amazon.com While the system was previously sold at Walmart
You may find "New Old Stock" or second-hand tap systems on platforms like eBay or Amazon , but actual beer refills are rarely listed due to shelf-life and shipping restrictions. Options for Owners Draftmark 1-Pack Tap System - Amazon
Amazon.com: Draftmark 1-Pack Tap System,: Beer Kegging Equipment: Home & Kitchen. Amazon.com