National Optical & Scientific Instruments, Inc.
11113 Landmark 35 Drive
San Antonio, Texas 78233
Phone: (210) 590-9010 Tollfree: (800) 275-3716
Fax: (210) 590-1104
Wholesale only, distributes throughout U.S. and Mexico to dealer network. Product primarily for K-University educational market, as well as for laboratory and industrial. Sold under National brand as well as private label for several national science supply distributors.