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

Shadowless bottom construction allows for viewing with undistorted light

With standard taper Cap Stoppers

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.

Shadowless bottoms transmit undistorted light

Shadowless bottom and sturdy construction make these tubes ideal for AOCS-specific testing

Set of two clear glass Nessler tubes