Please use our general fax number, where your fax will be dealt with promptly:

1-707-432-2240

International Faxing
If you are faxing ABCO Laboratories from outside the United States of America, please use the following fax number:

001-707-432-2240

Please Note: '001' is the international code. Most countries use this prefix to call the USA, however if you experience any difficulties please contact your local telephone service provider.