Thermo Scientific™

Nalgene™ Polypropylene Floating Microtube Racks

 Related applications:
Lab Clean Up, Safety and Organization

Thaw, cool and incubate samples at elevated or reduced temperatures. Thermo Scientific™ Nalgene™ Polypropylene Floating Microtube Racks are especially useful in genetic cloning, microbiology and immunology labs. These racks offer excellent temperature resistance from −70° to +100°C (−94° to +212°F). Tubes are supported in the rack below the lip. Square or round racks have molded-in letters and numbers at each hole for easy sample identification.

Error loading your content!

  Catalog number Price ({{currency}}) Availability Qty
also known as {{product.formattedSku}} 
{{product.availability.message}} Add To Cart

{{addItemToList.successMessage}} {{addItemToList.listName}}

Back to top


  • Square- and round-style racks for incubating 0.5 to 2.0mL microcentrifuge tubes at elevated or reduced temperatures in water or ice baths
  • Round-style racks fit conveniently inside 400 or 1000mL beakers
  • Square rack is designed for stable flotation in turbulent water baths—racks will float with a full load of filled tubes
  • On benchtop, rack legs prevent bottom of tubes from touching bench surface
  • Handle provides convenient transport, agitation and removal from water bath
  • Each hole has molded-in letters and numbers for easy sample identification


Racks are not autoclavable.

Warranty: 90 days. For warranty terms, please contact

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.

Certificates of Compliance

Receive a Certificate of Compliance and Certificate(s) of Irradiation (if applicable) on purchased Nalgene and Nunc products.
Start your request  


Manuals & protocols