Securely hold a full load of test tubes or centrifuge tubes for 13, 16, 20, 25 and 30mm diameter sizes with Thermo Scientific(TM) Nalgene(TM) Unwire™ test tube racks. Moulded 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 bath and won't float
Withstands most lab chemicals and temperatures up to 121°C for a variety of lab procedures
Available in six bright colours to help keep samples organised
15mL conical tubes fit 20mm racks; 50mL conical fit 30mm racks
No assembly is required; rack is ready to use