Payment Options

Credit Card

You may pay by credit card by using the PayPal service.  PayPal accepts Visa, MasterCard, American Express, and Discover.

Electronic Checking Account Transfer

You may transfer funds directly from your checking account ("eCheck") using the PayPal service.  eCheck works just like a paper check, only much quicker and easier.

Check or Money Order

You can mail us a personal or business check, or money order.  If you choose this method, we simply put your order into a "Pending" status until we receive the check/money order and the funds have cleared.

Pro Forma Invoice

After you make an order marked to be paid by check, send a brief e-mail message to orders@northrop.biz, asking for a pro forma invoice.  We can either mail or fax it to you, and your accounting department can send a check for the order.