Optical Glass Plate Beam Splitter, BK-7 Glass, 12.70mm Diameter, 1mm Thick, 50:50 Transmission Reflection, for Scientific Instruments (Diameter 12.70mm)
SAR 100
Improved Neubauer Hemocytometer, Optical Glass Counting Chamber, 0.1mm Depth, for RBC, WBC & Lab Use
SAR 105
Optical Glass bk-7 Right Angle Prism, Precision Optics
SAR 37