Rely on Thermo Scientific plastic test tube racks to provide reliable support and organization for your lab's test tubes, centrifuge tubes, conicals, and other tubes in the 13–30mm diameter range.
It's time to clean out any mushy, moldy old wooden racks left from the 1980s and replace them with easy-to-clean, sturdy and durable, high-quality plastic racks. Are rusty metal racks with peeling colored coatings and broken welds the bane of your lab? Replace them with Nalgene Unwire racks. Don't settle for flimsy knock-offs that won't support the weight of a full load of tubes.
You can count on these test tube racks to get the job done right and get your lab refreshed and organized for the important jobs ahead.
Select a Nalgene unwire rack
Replace your metal test tube racks with our most popular plastic racks. Nalgene Unwire Racks have no coating to chip, peel, or rust. These racks are molded in a single piece for exceptional strength and durability. Nalgene Unwire racks securely support a full load of filled test tubes or centrifuge tubes. The smooth finish leaves fewer places for contaminants to hide; no welds to break, no sharp edges, and no assembly required—ready to use. Molded in a variety of bright, fade-resistant colors to help organize your lab and your samples. Endplates accept large labels for easy identification of samples.
| Nalgene Resmer Unwire Racks | Nalgene Resmer Unwire Half Racks | Nalgene PP Unwire Racks |
| Securely supports a full load of filled tubes. Recommended for benchtop, steam sterilization, and water bath use | Half the rack uses half the bench space. Recommended for benchtop, steam sterilization, and water bath use | Extra impact strength for room temperature applications |
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| Resmer manfucaturing technology | Resmer manfucaturing technology | Filled polypropylene construction |
| Autoclavable, use to 121°C | Autoclavable, use to 121°C | Do not autoclave |
| Does not float in water | Does not float in water | Does not float in water |
| Sizes to hold 13, 16, 20, 25 or 30mm tubes | Sizes to hold 13, 16, 20, 25 or 30mm tubes | Sizes to hold 13mm or 16mm tubes |
| 13mm = 6 x 12 array 16mm = 6 x 12 array 20mm = 4 x 10 array 25mm = 4 x 10 array 30mm = 3 x 8 array | 13mm = 6 x 6 array 16mm = 6 x 6 array 20mm = 4 x 5 array 25mm = 4 x 4 array 30mm = 3 x 3 array | 13mm = 6 x 12 array 16mm = 6 x 12 array |
| Green, white, blue, red, yellow, or orange | Green, white, blue, or red | Green, white, blue, or red |
Select a general purpose test tube rack
| Nalgene PP Test Tube Rack | Nalgene PC Test Tube Rack | Nalgene PC Test Tube Slant Rack | Nalgene Test Tube Peg Rack | Thermo Scientific 4-way Flipper |
| Rugged general use rack with keyed tube locations for easy sample identification and retrieval | Freezer to autoclave, this rack stays tough through it all. Clear polycarbonate construction allows unobstructed tube viewing; keyed sample locations | Designed for incubating liquid cultures, or preparing consistent agar slants. Orients tubes at a 5° or 20° angle; keyed sample locations | Allows unobstructed vertical view of tube contents. Suitable for drying glass plates for electrophoresis and chromatography | Can be oriented to hold four different tube sizes (one size at at time). Ideal for cell culture applications |
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| Polypropylene | Polycarbonate | Polycarbonate | Filled polypropylene | Polypropylene |
| Opaque construction | Allows full view of tube contents | Allows full view of tube contents | Allows full vertical view of tube contents | Opaque construction |
| Stackable when empty | Stackable when empty | Stackable when empty | Stackable when empty | Stackable when empty |
| Handle | Handle | Handle | No handle | No handle |
| Do not autoclave | Autoclavable | Autoclavable | Autoclavable | Do not autoclave |
| Does not float in water | Does not float in water | Does not float in water | Does not float in water | Does not float in water |
| Tube locations keyed with numbers and letters | Tube locations keyed with numbers and letters | Tube locations keyed with numbers and letters | Not keyed | Tube locations keyed with numbers and letters |
| Holes in platform allow inverted tubes to drain and dry | Holes in platform allow inverted tubes to drain and dry | Holes in platform allow inverted tubes to drain and dry | Molded-in ribs allow inverted tubes to drain and dry | Not designed for tube draining/ drying |
| Three sizes: hold tubes 13–25mm in diameter | Three sizes: hold tubes 13–25mm in diameter | Two sizes: hold tubes 15–16mm or 20mm diameter | Two sizes: hold tubes 10–17mm diameter | One size: each rack holds thirty-two 0.5mL or 1.5mL microtubes, four 15mL or 50mL tubes, each on a different side |
13–16mm tubes = 4 x 10 array
| 13–16mm tubes = 4 x 10 array 16–20mm tubes = 4 x 10 array 21–25mm tubes = 3 x 8 array | 15–16mm tubes = 4 x 10 array 20mm tubes = 4 x 10 array | 10–13mm tubes = 8 x 12 array 14–17mm tubes = 5 x 10 array | One rack—4 orientations: 0.5mL microtube = 4 x 8 array 1.5mL microtube = 4 x 8 array 15mL conical = 2 x 6 array 50mL conical = 1 x 4 array |
| White | White/clear | White/clear | White or blue | Pink, green, or orange |
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