Purchasing Information

You can pay by check, money order, credit card, bank wire/ACH transfer or PayPal. Click the links below for details on each payment method:

• Paying by credit card


• Paying by ACH or wire transfer


• Paying by check


• Paying using PayPal

Purchase Orders

We also accept written purchase orders from universities, private companies, and other organizations. We must receive a copy of the PO by fax, e-mail or mail before we can process the order. Terms are net 30 days.