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High-quality glass test tubes that meet Federal and American Public Health Association (APHA) standards
With standard taper Cap Stoppers
Shadowless bottoms transmit undistorted light
Shadowless bottom construction allows for viewing with undistorted light
Fill Kimble™ Low Form Nessler Color Comparison Tubes and let their shadowless bottom transmit undistorted light. No dark spots form when the tubes are filled with liquid and viewed from the top.
Set of two clear glass Nessler tubes