Ready-to-use No assembly required Provides an unrestricted view of tubes Available in 2 sizes: 13 and 16 mm and four colors: white, blue, green and red. Do not autoclave.

Smooth finish leaves fewer places for contaminants to lodge; no welds to break, no sharp edges. Endplates accept large labels for easy identification of samples. Higher specific gravity than water so it stays submerged in a water bath and won't float. Withstands most lab chemicals and…