| Business | Phone |
| Airgas Puritan Medical 2604 S 20th Pl, Phoenix 85034 | (602) 437-8376 |
| Airgas West 2001 E University Dr, Phoenix 85034 | (602) 307-1660 |
| Praxair Inc 10624 N 19th Ave, Phoenix 85029 | (602) 861-0138 |
| Matheson Tri-Gas 1545 W Watkins St, Phoenix 85007 | (602) 495-9000 |