ok I'll get it started:
Exchanges:
* Airgas
820 Industrial Rd, San Carlos, CA
(650) 592-9305
* Clark Industrial Supply Inc
1760 Rogers Ave, San Jose, CA
(408) 436-7544
Refills
* Ace Fire Equipment & Service Co., Inc.
http://www.acefireinc.com/index.htm
Food/Beverage Grade
1870 West Bayshore road
Palo alto, ca 94303
Phone: 650/321-7440
Fax: 650/321-1063
Carbonic Service Inc
http://carbonicservice.com/
1920 De La Cruz Blvd, Santa Clara, CA
(408) 727-8835
Food/Beverage Grade