Test Tube Rack Thermo Scientific™ Nalgene® Unwire™ 24 Place 30 mm Tube Size Blue 4-1/4 X 3-2/3 X 11 Inch Fisher Scientific 1480944 Features Molded in a single piece for exceptional strength and durability, these racks have no coating to chip, peel or rust 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...