| Business | Phone |
| Airgas Puritan Medical 3450 S Broadmont Dr # 114, Tucson 85713 | (520) 792-9090 |
| Praxair Inc 1020 W Oleta Dr, Tucson 85704 | (520) 229-3415 |
| Praxair Inc 800 S Park Ave, Tucson 85719 | (520) 624-1781 |
| Matheson Tri-Gas 3238 E 47th St, Tucson 85713 | (520) 882-6085 |