Every CO2 supplier we could find in the Philadelphia area (Pennsylvania) was checked one by one, and 17 of them made the list. 3 will refill the cylinder you walk in with. 3 only swap it for a different tank, which matters if yours is new or an odd size. 11 would not confirm either way, so those are marked call to confirm rather than guessed at. 4 confirm food grade CO2 for anything you actually drink; most cover welding, industrial, homebrew.
17places listed
3confirmed refill
4confirmed food grade
Last checked October 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
Philadelphia Extract Company
Refill
4124 Blanche Rd · Bensalem, PA 19020
ServiceRefill
Food gradeYes
Tank sizesAsk when you call
Your cylinderYes, refills yours
homebrewsodabeverage
Hours Mon-Fri 09:00-16:00; Sat-Sun Closed
Official current site verifies the Bensalem location and states that its CO2 is beverage-grade purity and available in cylinders. A current local listing includes an April 2025 customer report of a beverage-grade CO2 refill for a kegerator, supporting same-cylinder refill classification. The official site provides a contact form but no reliable public email address. Exact currently supported refill sizes were not verified.
Hours Mon-Fri 07:00-17:00; Sat 07:00-14:00; Sun Closed
Official current site verifies the South Philadelphia location, phone, and hours and offers industrial gas service. Current 2026 customer evidence specifically reports a CO2 tank being refilled quickly at this exact business, supporting same-cylinder refill classification. The official site uses a contact form rather than publishing an email address. Food-grade status and exact supported CO2 refill sizes were not verified.
Official current site verifies the Philadelphia location, phone, email, hours, and explicitly lists Carbon Dioxide among gases carried. Recent Philadelphia customer evidence, including a 2024 follow-up, identifies J.F. Martin as a successful CO2 cylinder refill option. Food-grade status and exact supported refill sizes were not established.
Official current gas-cylinder page explicitly states that Carbonator Rental delivers and exchanges DOT-certified CO2 cylinders filled to food-grade standards and supplies full beverage-grade CO2 cylinders. Official current contact information verifies the Philadelphia address, phone, email, and weekday hours. Portable customer-cylinder same-cylinder refill is not the published cylinder service, so this row is exchange only. Bulk CO2 tank refill service is not used to classify portable cylinders as both.
Confirmed by Roberts Oxygen in October 2026: the CO2 is food grade and every branch does cylinder exchange rather than refilling the cylinder you bring in. Branch address, phone and hours from the company's own locations list. Stated company policy rather than a branch-level check, so confirm anything unusual when you call.
Confirmed by Roberts Oxygen in October 2026: the CO2 is food grade and every branch does cylinder exchange rather than refilling the cylinder you bring in. Branch address, phone and hours from the company's own locations list. Stated company policy rather than a branch-level check, so confirm anything unusual when you call.
Official current branch page verifies this close-in South Jersey location, branch-specific email, phone, hours, and explicitly lists carbon dioxide. Portable refill versus exchange behavior, food-grade status, and exact CO2 cylinder sizes remain unknown.
Official current branch page verifies the Bensalem location, branch-specific email, phone, hours, and explicitly lists carbon dioxide among gases available at this branch. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes are not published.
Official current branch page verifies the exact Hatfield location, branch-specific email, phone, hours, and explicitly lists carbon dioxide. Portable customer-cylinder refill versus exchange behavior, food-grade availability, and supported cylinder sizes are not published.
Official current branch page verifies the exact Horsham location, branch-specific email, phone, hours, and explicitly lists carbon dioxide. Portable refill versus exchange behavior, food-grade status, and supported CO2 cylinder sizes are not published.
Official current branch page verifies the King of Prussia location, branch-specific email, phone, hours, and explicitly lists carbon dioxide among gases at this branch. Portable refill versus exchange behavior, food-grade status, and exact cylinder sizes remain unknown.
Official current branch page verifies this exact Philadelphia location, branch-specific email, phone, hours, and explicitly lists carbon dioxide at the branch. Public branch evidence does not establish whether portable customer cylinders are refilled or exchanged, nor food-grade availability or exact cylinder sizes.
Linde Welding Gas & Equipment Center - Conshohocken
Call to confirm
1013 Conshohocken Road · Conshohocken, PA 19428
ServiceCall to confirm
Food gradeCall to confirm
Tank sizesAsk when you call
Your cylinderAsk
weldingindustrial
Hours Mon-Fri 07:30-16:30; Sat-Sun Closed
Official current branch page verifies the Conshohocken retail location, phone, hours, and explicitly lists Carbon Dioxide among gases available at the branch. The email is Linde's official corporate contact because no branch-specific public email was verified. Portable refill versus exchange behavior, food-grade status, and exact sizes remain unknown.
Official current branch page verifies the Levittown retail location, phone, hours, and explicitly lists Carbon Dioxide under gases available at this branch. The email is Linde's official corporate contact because no branch-specific public email was verified. Portable refill versus exchange behavior, food-grade status, and exact sizes remain unknown.
Linde Welding Gas & Equipment Center - Philadelphia
Call to confirm
2300 E. Church Street · Philadelphia, PA 19124
ServiceCall to confirm
Food gradeCall to confirm
Tank sizesAsk when you call
Your cylinderAsk
weldingindustrial
Hours Mon-Fri 07:30-16:30; Sat-Sun Closed
Official current branch page verifies the Philadelphia retail location, phone, hours, and explicitly lists Carbon Dioxide under gases available at this location. The email is Linde's official corporate customer contact because no branch-specific public email was verified. Portable refill versus exchange behavior, food-grade status, and exact cylinder sizes remain unknown.
Current official site verifies the Feasterville physical location, phone, weekday hours, and sales email. Its current industrial-gas page explicitly lists Carbon Dioxide as both compressed industrial gas and specialty gas. Portable refill versus exchange behavior, food-grade status, and exact cylinder sizes are not published.
Hours Mon-Fri 08:00-17:00; Sat 08:00-12:00; Sun Closed
Official current contact page verifies the Maple Shade branch, phone, hours, and general sales email. Current company materials explicitly list Carbon Dioxide among industrial gas offerings, and current location evidence identifies Maple Shade as an active physical company location. Public evidence does not clearly distinguish portable same-cylinder refill from exchange, nor establish food-grade status or exact qualifying sizes.