Looks like they have multiple locations http://www.fergusongases.com/Locations.htm but not sure if all of them do CO2 (probably do but I would call first). The one in McKinney only does exchanges for 5# and 20# but again, other locations might do something else. McKinney location:
Ferguson Industrial Gases
1712 South McDonald
McKinney, TX 75069
Office 972.562.0622
Was not the cheapest ($20 for 5#) exchange but it is so close to my house it is worth it.
Lee
Ferguson Industrial Gases
1712 South McDonald
McKinney, TX 75069
Office 972.562.0622
Was not the cheapest ($20 for 5#) exchange but it is so close to my house it is worth it.
Lee