With standard taper Cap Stoppers

For use in colorimetric analysis, such as APHA color.

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.

High-quality glass test tubes that meet Federal and American Public Health Association (APHA) standards

Shadowless bottom construction allows for viewing with undistorted light

Shadowless bottoms transmit undistorted light