Contact your Nearest Walker Sales LocationColorado, Denver 1795 East 66th Avenue Denver, CO 80229 Phone: 303-292-9594 Fax: 303-296-4734 Utah, Salt Lake City 3688 West 2100 South Salt Lake City, UT 84120 Phone: 801-977-9750 Fax: 801-975-1207Illinois, Chicago 2401 West Hassell Road, Suite 1505 Hoffman Estates, IL 60195 Phone: 847-843-2040 Fax: 847-843-2320Northern California 9960 Business Park Drive, Suite 140 Sacramento, CA 95827 Phone: 916-363-6030 Fax: 916-362-6926Southern California 25691 Atlantic Ocean Drive, Suite B 18 Lake Forest, CA 92630 Phone: 949-597-2081 Fax: 949-581-5538Oregon, Portland 3720 S.W. 141st Street, Suite 102 Beaverton, OR 97005 Phone: 503-641-16