Graybar Electric Supply 2810 North First AveSioux Falls, SD, 57104 View Phone 605-731-7900 Fax: 605-338-7262 Toll Free: 800-955-6065 2810 North First AveSioux Falls, SD 57104 View Website Experience & Reliability About Connect with this Business: Send to My Email Send to My Phone Print this Page