Thermo Scientific™

Nalgene™ Unwire™ Test Tube Racks: Resmer™ Manufacturing Technology

Securely hold a full load of test tubes or centrifuge tubes for 13, 16, 20, 25 and 30mm diameter sizes with Thermo Scientific™ Nalgene™ Unwire™ Test Tube Racks. Molded in a single piece for exceptional strength and durability, these racks have no coating to chip, peel or rust.

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  • 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 colors to help keep samples organized.
  • 15mL conical tubes fit 20mm racks; 50mL conical fit 30mm racks.
  • No assembly is required; rack is ready to use.

Warranty: 90 days. For warranty terms, please contact