Every CO2 supplier we could find in the Dallas area (Texas) was checked one by one, and 15 of them made the list. 3 will refill the cylinder you walk in with, so you keep the tank you own. 12 would not confirm either way, so those are marked call to confirm rather than guessed at. 1 confirm food grade CO2 for anything you actually drink; the common sizes here are 10lb, 2.5lb, 20lb; most cover welding, soda, homebrew.
15places listed
3confirmed refill
1confirmed food grade
Last checked September 2026
Sorted for you: places that refill your own tank come first, then the most complete, confirmed listings. Exchange-only and unconfirmed spots follow.
KeyRefillBothExchangeConfirm
North Texas Homebrew Supply
Refill + Exchange
17811 Davenport Rd Suite 11 · Dallas, TX 75252
ServiceRefill + Exchange
Food gradeCall to confirm
Tank sizes2.5lb / 5lb / 10lb / 20lb
Your cylinderYes, refills yours
homebrewsoda
Current official CO2 service page says customers can bring certified 2.5 lb, 5 lb, or 10 lb cylinders for refill while they wait; 20 lb cylinders are sent out for refilling. The same page also offers CO2 cylinder exchange services in 2.5 lb, 5 lb, 10 lb, and 20 lb sizes. Food-grade status was not explicitly stated. Email source: https://northtexashomebrew.com/homebrew-event/national-homebrew-day-2026/.
Current official site explicitly advertises walk-in CO2 cylinder refills while customers wait. Food-grade status and refill sizes were not established.
Current store information verifies the active Dallas location. Recent current local evidence specifically describes walk-in CO2 refills, including small CO2 tanks. Beverage use is supported by the store's keg and beverage-gas business. Food-grade designation and exact refill sizes were not explicitly established. Email source: https://www.allbiz.com/business/parkit-market_15-214-363-4907.
Current location evidence verifies this Garland NuCO2 physical operation. NuCO2's current corporate service documentation explicitly states that it supplies certified beverage-grade carbon dioxide. This is commercial beverage CO2 service; public walk-in portable-cylinder refill or exchange behavior was not established. Email is corporate/general contact; Email source: https://www.nuco2.com/Home/Contact.
Current official branch page explicitly lists carbon dioxide among gases available. Denton is included as a practical north DFW metro option. Refill versus exchange behavior, food-grade status, and qualifying portable cylinder sizes were not established. Email is corporate/general contact; Email source: https://www.airgas.com/customer-service.
Current official branch page explicitly lists carbon dioxide among gases available. The branch page does not establish same-cylinder refill versus exchange, food-grade status, or portable cylinder sizes. Email is corporate/general contact; Email source: https://www.airgas.com/customer-service.
Current official branch page explicitly lists carbon dioxide among gases available. Refill versus exchange behavior, food-grade status, and qualifying portable cylinder sizes were not established. Email is corporate/general contact; Email source: https://www.airgas.com/customer-service.
Current official branch page explicitly lists carbon dioxide among gases available. Refill versus exchange behavior, food-grade status, and qualifying portable cylinder sizes were not established. Email is corporate/general contact; Email source: https://www.airgas.com/customer-service.
Current official branch page explicitly lists carbon dioxide among gases available. Refill versus exchange behavior, food-grade status, and qualifying portable cylinder sizes were not established. Email is corporate/general contact; Email source: https://www.airgas.com/customer-service.
Current official branch page verifies this active Dallas gas and welding location. A current Dallas County supply contract covering 2023 through 2028 lists carbon dioxide products for Linde at this exact Irving Boulevard address. The evidence establishes CO2 supply but not portable same-cylinder refill versus exchange. Email is corporate/general contact; Email source: https://www.linde.com/contact-us.
Current location evidence verifies the active Garland Linde branch, and recent current branch-specific reporting lists carbon dioxide among gases sold at this location. Portable refill versus exchange behavior, food-grade status, and qualifying sizes were not established. Email is corporate/general contact; Email source: https://www.linde.com/contact-us.
Current business information verifies the Dallas industrial-gas branch. A Dallas County supply contract covering 2023 through 2028 lists carbon dioxide products supplied by Matheson at this exact California Crossing Road address. Portable refill versus exchange behavior and qualifying sizes were not established. Email is corporate/general contact; Email source: https://www.mathesongas.com/pdfs/litcenter/Petrochemical-Industry-Program-for-Specialty-Gas-Supply.pdf.
Hours Mon-Fri 07:30-17:00; Sat 08:00-12:00; Sun Closed
Current official company site verifies this Dallas physical branch and industrial-gas service. Current company materials identify carbon dioxide as a principal gas handled by the business. Older community evidence reports CO2 filling and swaps across Metroplex Welding Supply locations, but branch-specific current behavior is not clear enough to classify refill or exchange. Email source: https://www.metroweld.com/contact-noscript.php.
Current official company site verifies this Grand Prairie physical branch and industrial-gas service. Current company materials identify carbon dioxide as a principal gas handled by the business. Branch-specific portable refill versus exchange behavior, food-grade status, and sizes remain unverified. Email source: https://www.metroweld.com/contact-noscript.php.
Current official company site verifies this Mesquite physical branch and industrial-gas service. Current company materials identify carbon dioxide as a principal gas handled by the business. Branch-specific portable refill versus exchange behavior, food-grade status, and sizes remain unverified. Email source: https://www.metroweld.com/contact-noscript.php.