Telephone
800-258-8796
FAX
224-856-5419
Postal address
927 North State Street, Elgin, Illinois 60123
Electronic mail
General Information: greatclay@greatclay.com Sales: greatclay@greatclay.com Customer Support: tpfiffner@greatclay.com Order/Invoicing Questions: smeyer@greatclay.com Webmaster: amarchetti@greatclay.com