S2K Commerce - Products Dropdown
S2K Commerce - Shopping Cart
S2K Commerce - Order Entry
Test Tubes and Racks
From test tubes and racks to the labels and boxes you’ll use them with. MIDSCI has got your needs covered.
We also have freezer racks and autoclavable racks, stackable storage boxes and freezer boxes, general storage containers and cryogenic storage refrigerators and tanks.
And let’s not forget the labels! Wash-off labels, removable labels, and labels that will never come off (if you need that).
There are so many other quality choices and options for all of these products. MIDSCI has a wide assortment of test tubes, including top-notch centrifuge tubes your research depends on. We carry everything from sterile centrifuge tubes that we promise won’t buckle during spins to specialty centrifuge tubes that are completely blacked out to preserve your light sensitive compounds.
New Look, Same Reliable Product - Now from PR1MA™!
Â
PR1MA™ 5 and 10 mL Transport Tubes
Â
Leak-Proof, 95kPa Compliant, and Sterile.
Â
PR1MA™ Transport Tubes are high-quality, leak-proof tubes designed for the secure transport, storage, and freezing of biological samples. Widely used in clinical, hospital, pharmaceutical, environmental, food testing, and research laboratories, these tubes meet the rigorous demands of modern laboratory workflows and 95kPa transportation compliance—making them suitable for air transport of infectious or high-value specimens.
Â
These 5 mL (16 x 60 mm) and 10 mL (16 x 80 mm) tubes are constructed from high-grade polypropylene and feature vivid white printed graduations and a dedicated marking area for easy sample identification and tracking. All tubes are self-standing for stable benchtop use.
Â
Two reliable sealing options are available:
- Standard Screw-Cap Tubes – Features a leak-proof 1.25-turn screw cap that comes pre-attached for convenience
- O-Ring Screw-Cap Tubes – Engineered with an integrated silicone O-ring that exceeds 95kPa standards, ensuring maximum containment in high-pressure and extreme temperature environments
Both types are available in:
- Sterile (with pre-attached caps)
- Non-sterile (with separately packaged caps)
- RNase, DNase, and pyrogen-free
- 100/bg, 10 bgs/cs for high-throughput laboratory use
Key Features
- Leak-proof screw caps (standard or O-ring options)
- Exceeds 95kPa compliance standards for safe air transport
- Durable, medical-grade polypropylene
- Clear printed graduations and writing area
- Available in 5 mL and 10 mL sizes
- Sterile (pre-attached caps) and non-sterile (caps separately packaged)
- Self-standing design for benchtop stability
- Ideal for storage, freezing, and transport of liquid samples
50 mL PP Centrifuge Tubes
Â
Our 15mL, 30mL, and 50mL centrifuge tubes are made of premium polypropylene for clarity and centrifugal strength. Tubes and caps may be frozen at temperatures as low as -86C. The maximum centrifugal force is 12,000xg for the 15mL tubes, 7,000xg for the 30mL tubes, and 15,000xg for the 50mL tubes*. Caps have a flat top surface for easy marking and labeling. C2605 and C2630 feature a ‘skirted’ bottom that allows the tubes to stand upright without a separate test tube rack. The C2600 series of centrifuge tubes, self-standing or not, are leakproof to 95 kPa/14psi.
*Refers to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.
- Sterile, RNase, DNase, pyrogen, and cytotoxin free
- Available racked, NEW! Eco-Racked or bagged
- Compatible with standard rotors
- Frosted marking surface Â
30 mL PP Centrifuge Tubes
Â
Our 15mL, 30mL, and 50mL centrifuge tubes are made of premium polypropylene for clarity and centrifugal strength. Tubes and caps may be frozen at temperatures as low as -86C. The maximum centrifugal force is 12,000xg for the 15mL tubes, 7,000xg for the 30mL tubes, and 15,000xg for the 50mL tubes*. Caps have a flat top surface for easy marking and labeling. C2605 and MID-2630 feature a ‘skirted’ bottom that allows the tubes to stand upright without a separate test tube rack. The C2600 series of centrifuge tubes, self-standing or not, are leakproof to 95 kPa/14psi.
*Refers to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.
- Sterile, RNase, DNase, pyrogen, and cytotoxin free
- Available racked, NEW! 15 and 50 mL Eco-Racked or bagged
- Compatible with standard rotors
- Frosted marking surface
Â
DuoClick™ Two Position Screw-Cap Culture Tubes
Â
Revolutionize your culturing process with DuoClick™ Two Position Culture Tubes—featuring a patent-pending screw-cap design that offers simple, secure, and splatter-free closure. Ideal for both aerobic and anaerobic culturing, DuoClick™Â tubes eliminate the frustration of traditional snap-caps and provide a safer, more controlled lab experience.
Â
The innovative cap mechanism clicks into two distinct positions:
- First Click: Secure, ventilated seal for aerobic culturing
- Second Click: Airtight, leakproof seal for anaerobic culturing
Made from high-quality polypropylene, these tubes are durable, chemical-resistant, and centrifuge-safe up to 4,000 x g. They come gamma sterilized, with attached screw caps, and are available in ready-to-use rack packaging for maximum convenience. Each tube also features easy-to-read printed graduations and a flat, markable cap for improved labeling and traceability in busy lab environments.
Â
Key Features
- Patent-pending DuoClick™Â screw-cap with aerobic and anaerobic settings
- Reduces splashing and eliminates snap-cap frustration
- Flat, writable screw-cap for easy sample identification
- Printed graduations for accurate measurement
- Polypropylene construction – centrifuge safe up to 4,000 x g
- Gamma sterilized and ready-to-use in racks
- Ideal for microbiology, cell culture, and general lab useÂ
Upgrade your lab’s efficiency and safety with DuoClick™Â Culture Tubes—the smarter solution for modern culturing workflows.
Â
New Look, Same Reliable Product - Now from PR1MA™!
Â
PR1MA™ Transport Tubes with Temperature Indicator
Â
Leak-Proof, 95kPa Compliant, Temperature-Indicating Sample Vials.
Â
PR1MA™ Self-Standing Transport Tubes—commonly known as mailing tubes or transport vials—are specifically engineered for the safe storage, transport, and freezing of temperature-sensitive biological samples. Made from virgin polypropylene, these tubes are RNase, DNase, and pyrogen-free, ensuring contamination-free use in medical, clinical, pharmaceutical, and research settings.
Â
Each sterile tube features a 1¼-turn, leak-proof screw cap that is pre-attached for convenience. The tubes are fully 95kPa compliant, making them ideal for the air transport of infectious or high-risk samples.
Â
Now enhanced with Temperature Indicator Technology, each tube includes a
built-in indicator patch that offers a visual cue of the sample’s temperature state:
- Starts turning blue at 4°C
- Turns dark blue at 0°C
- Returns to transparent grey above 4°C
This unique feature helps researchers monitor cold chain integrity and prevents sample degradation due to temperature fluctuation—perfect for transporting vaccines, reagents, or temperature-sensitive specimens.
Â
Key Features
- Temperature Indicator for real-time temperature awareness
- Certified 95kPa compliant for air shipment of biological materials
- Made from high-purity, virgin polypropylene
- Leak-proof, 1¼-turn screw caps (pre-attached)
- White printed graduations and marking area for easy labeling
- Sterile, RNase, DNase, and pyrogen-free
- Self-standing design for benchtop stability
MTC™ Bio 10 mL Centrifuge Tubes
Â
Perfect Mid-Range Solution Between 5 mL and 15 mL Tubes.
Â
MTC™ Bio’s 10 mL Centrifuge Tubes are the ideal choice when 5 mL is too little and 15 mL is too much. Designed for efficiency, these tubes help reduce plastic waste, shipping costs, and storage space without compromising performance. Their shorter height allows for 100% sample recovery and less pipette contamination, making them a smarter alternative to taller 15 mL tubes.
Â
Manufactured from high-quality medical-grade polypropylene, these tubes are RNase, DNase, and pyrogen-free, and come sterile in bags of 50 with attached screw caps. With a maximum RCF rating of 12,000 x g, they’re compatible with most 15 mL rotors, racks, and thermal blocks.
Â
Key Features
- Fills the gap between 5 mL and 15 mL tubes
- Shorter tube height reduces waste, improves recovery, and prevents pipette contact with inner walls
- Printed graduations from 1.5 to 10 mL (0.5 mL increments)
- Fits most 15 mL centrifuge rotors, racks, and heaters
- Withstands up to 12,000 x g RCF
- Supplied sterile, with screw caps attached
- Certified RNase, DNase, and Pyrogen-Free
Applications
- General lab centrifugation
- Sample prep and storage
- Molecular biology, microbiology, and cell culture
- Clinical and diagnostic workflows
Packaging
- 50 tubes per sterile bag, caps attached
- Bulk-friendly for labs looking to reduce cost and wasteÂ
Specifications
Â
Max RCF w/o Cap | 12,000 x g |
Temp. Range | -86 to 121°C (-122.8 to 249.8ºF) |
Material | Tube: Polypropylene | Cap: HDPE |
Dimensions (D x H) | 0.63 x 4.09 In. | 16 x 104 mm |
PR1MA™ Card Board Freezer Boxes and Inserts
- Used for upright freezer or chest freezer racks
- Temperature Range: -196 to +121ºC
- Box has drain holes on bottom and a writing area on the lid
- Standard 5.25 x 5.25 x 2-inch format, Also available in 3 and 4 inch format
- Available cell dividers: 144, 100, 81, 64, 49, 36, 25, or 16
Specifications
Cardboard Boxes | ||
Item Number | Description | Dimension L x D x H |
SB2CC | Standard White 2" Cardboard Box | 5.25 x 5.25 x 2 in. |
SB2CC-XX* | Standard White 2" Box w/cell divider | |
SB2C | Standard Yellow 2" Cardboard Box | |
SB2C-XX* | Standard Yellow 2" Cardboard Box w/cell divider | |
SB3C | Standard White 3" Cardboard Box | 5.25 x 5.25 x 2.937 in. |
SB3C-XX* | Standard White 3" Cardboard Box w/cell divider | |
SB4C | Standard White 4" Cardboard Box | 5.81 x 5.81 x 4.84 in. |
SB4-XX* | Standard White 4" Cardboard Box w/ cell divider | |
*xx=number of dividers (144,100,81,64,49,36,25,16) | ||
Standard Box Dividers for Cardboard and Metal Boxes | ||
Item Number | Description | Dimensions L x D x H |
CD-16 | Box Divider, 16-Cells | 4.857 x 4.857 x 1.312 in. |
CD-25 | Box Divider, 25-Cells | |
CD-36 | Box Divider, 36-Cells | |
CD-49 | Box Divider, 49-Cells | |
CD-64 | Box Divider, 64-Cells | |
CD-81 | Box Divider, 81-Cells | |
CD-100 | Box Divider, 100-Cells | |
CD-144 | Box Divider, 144-Cells | |
CD4-16 | Box Divider, 16-Cells | 5.375 x 5.375 x 2.75 in. |
CD4-36 | Box Divider, 36-Cells |
Â
FlowTubes™ For Flow Cytometry
Â
FlowTubes™ are high-clarity, 12 x 75 mm polystyrene tubes specifically engineered for use with flow cytometry instruments. Designed for precision and compatibility, each tube features tightly controlled neck dimensions to ensure reliable performance with automated sorting and analysis systems.
Â
Ideal for collecting and preparing dissociated samples,
FlowTubes™Â are available in multiple cap configurations to meet your specific needs:
- Standard two-position culture cap
- Cap with integrated 35 uM nylon mesh strainer for simplified sample filtering
- Uncapped option for flexible workflowsÂ
With a 5 mL capacity and made from crystal-clear polystyrene, these tubes offer excellent optical clarity for fluorescence-based applications and ensure smooth operation in automated instruments.
Â
Key Features
- Designed for flow cytometry and cell sorting
- Precision neck dimensions for consistent instrument compatibility
- Available with 35 uM strainer cap, standard cap, or no cap
- Crystal-clear polystyrene for high-clarity fluorescence imaging
- 12 x 75 mm format with 5 mL capacity
Whether you're processing high-throughput cell samples or performing critical FACS analysis, FlowTubes™ deliver the quality and consistency your lab demands.
Â
Five-O™ 5 mL MacroTubes® - Opaque Black
Â
The 5 mL Five-O MacroTubes take all of the conveniences of standard 15 mL conical tubes and scale them down for space efficiency and decreased natural resource consumption. Useful from -86°C to 110°C, these tubes are a valuable resource for boiling and for sample preservation at very low temperatures. Additionally, the 56 mm length (vs. 120 mm for 15 mL tubes, greatly reduces the risk of contamination of pipettor shafts, allowing 1 mL or 5 mL tips to easily reach the bottom.
Â
The foam racks are similar to the packaging normally associated with 15 mL tubes (upright with caps attached), but they require about 60% less storage space.
Â
- Opaque Black Tube
- Compatible with standard equipment
- Centrifuge at up to 25,000 x g
- RNase, DNase & pyrogen free
- Unsurpassed Clarity
- Dual graduations at every 0.2 mL and 0.5 mL
Â
Â
ITEM# | DESCRIPTION |
MID-2540-OB | 5 mL MacroTube in Opaque Black, Sterile, w/ attached screw caps |
MID-2590 | 2-tiered rack for 5mL MacroTubes |
MID-2570 | Centrifuge adapter for 5mL in 15mL cavity |
Â
TotalPure™ Metal Free Centrifuge Tubes
Â
Total-Pure™ Centrifuge Tubes are produced from a proprietary purified polypropylene blend that is certified to be free of trace metal content. Tested via ICP-MS, these tubes are certified to contain less than 1ppm of common trace metals including: Calcium, Magnesium, Zinc, Iron, Manganese, Copper, Aluminum, Silicon, Nickel, Vanadium, Sodium, Phosphorous, Cobalt, Chromium, Potassium, Lithium, Lead, Selenium, Cadmium, Mercury, and Arsenic.
In addition to a superior level of purity, TotalPure™ Tubes include a wide array of premium features. These tubes are engineered to withstand a max centrifugation rate of 20,000 x g, with this RCF specification printed directly on both the 15 mL and 50 mL tubes. These tubes also feature Hi-Viz™ graduations that are easily identified at any angle and the printed max-freeze line indicates the maximum allowable volume to be frozen inside the tubes. TotalPure’s natural color caps offer a smooth seal that is easy to open/close with one hand without compromising the integrity of the 95kPA leak-proof seal.
- Ultra-Pure Polypropylene Blend Certified Free of Trace Metals
- Hi-Viz™ Graduations with Maximum Freeze Capacity Line
- Resealable Zip Bags of 25 Tubes, or Individually Wrapped
- E-Beam Sterilized (SAL 10-6)
- RNase, DNase, and Pyrogen - Free Â
Latex, TE, BSE, Endotoxin Free
- Medical Grade PP conforms to FDA 21CFR (USP Class IV)
- Produced in Class 100,000 Clean Room Â
5 mL Microcentrifuge Tubes with Screw Cap
Â
Our new 5mL MacroTube has the convenience of a 1.5mL tube but scaled up for larger Vols. In many cases, these can replace 15mL tubes, dramatically reducing plastic waste, storage space and shipping costs. Additionally, the 56mm length (vs. 120mm for 15mL tubes, greatly reduces the risk of contamination of pipettor shafts, allowing 1mL or 5mL tips to easily reach the bottom.
The tubes are made of high clarify, low binding virgin polypropylene and are certified RNase/DNase free. The 16mm diameter is identical to standard 15mL tubes, thus ensuring compatibility with existing centrifuge rotors. Other equipment, specially designed for 5mL tubes is available.
The MacroTubes are suppled with 20mm(OD) caps that seal smoothly and completely with a single 360° turn. Useable from -86 °C to 110 °C, they are a valuable vessel for boiling and low temperature sample preservation. Choose from non-sterile bulk packaging, or sterile rack packaging (upright in foam racks with caps attached).
Specifications
- Compatible with standard equipment
- Withstands up to 25,000 X g
- Dual graduations (at every .2mL and .5mL)
- Unsurpassed clarity
- RNase and DNase free
MTC™ Bio Culture Tubes
Â
Polypropylene & Polystyrene Options.
Â
MTC™ Bio Culture Tubes are ideal for laboratory sample collection, culturing, and storage. Available in 12 x 75 mm (5 mL) and 17 x 100 mm (14 mL) sizes, these high-quality plastic tubes come with dual-position LDPE snap caps for flexible use.
Â
In the first cap position, the tube allows air exchange, ideal for aerobic culturing. The second position creates a leak-proof, airtight seal, perfect for anaerobic applications or secure sample storage.
Â
Choose from two tube materials:
- Crystal-Clear Polystyrene (PS): Withstands temperatures from 0°C to 70°C and can be centrifuged up to 2000 x g.
- Durable Polypropylene (PP): Resists temperatures from -86°C to 121°C, making it ideal for extreme storage and autoclaving. These tubes tolerate centrifugation up to 4000 x g.
Options include:
- Tubes with attached snap caps and molded graduations
- Tubes without caps and graduation-freeÂ
All MTC™Â Bio culture tubes are sterile (SAL 10) and free of RNase, DNase, pyrogens, and cytotoxins, ensuring the integrity of your samples in every application.
Â
Key Features
- Available in Polypropylene (PP) or Polystyrene (PS)
- Dual-position LDPE snap caps for aerobic or anaerobic use
- Molded graduations on capped versions
- Sterile and contaminant-free (RNase, DNase, pyrogen, cytotoxin)
- Temperature-resistant and centrifuge-compatible
Specifications
Â
Item # | Material | Size | Vol. | Qty |
T8301 | Polypropylene | 0.47 x 2.95 In. | 12 x 75 mm | 5 mL | 25/bg, 40 bgs/cs |
T8302 | Polypropylene | 0.47 x 2.95 In. | 12 x 75 mm | 5 mL | 125/bg, 8 bgs/cs |
T8305 | Polystyrene | 0.47 x 2.95 In. | 12 x 75 mm | 5 mL | 25/bg, 40 bgs/cs |
T8306 | Polystyrene | 0.47 x 2.95 In. | 12 x 75 mm | 5 mL | 125/bg, 8 bgs/cs |
T8320 | Polypropylene | 0.47 x 2.95 In. | 12 x 75 mm | 5 mL | 125/bg, 8 bgs/cs |
T8300 | Polystyrene | 0.47 x 2.95 In. | 12 x 75 mm | 5 mL | 125/bg, 8 bgs/cs |
C2595-7 | Polypropylene | 0.59 x 2.36 In. | 15 x 60 mm | 7 mL | 200/pk |
T8235 | Polypropylene | 0.67 x 3.94 In. | 17 x 100 mm | 14 mL | 25/bg, 40 bgs/cs |
T8260 | Polypropylene | 0.67 x 3.94 In. | 17 x 100 mm | 14 mL | 500/pk |
T8232 | Polypropylene | 0.67 x 3.94 In. | 17 x 100 mm | 14 mL | 125/bg, 8 bgs/cs |
T8225 | Polystyrene | 0.67 x 3.94 In. | 17 x 100 mm | 14 mL | 25/bg, 40 bgs/cs |
T8250 | Polystyrene | 0.67 x 3.94 In. | 17 x 100 mm | 14 mL | 500/pk |
T8236 | Polystyrene | 0.67 x 3.94 In. | 17 x 100 mm | 14 mL | 125/bg, 8 bgs/cs |
T8309 | Polyethylene | For 12 mm (0.47 In.) Tubes | N/A | 125/bg, 8 bgs/cs |
T8239 | Polyethylene | For 17 mm (0.67 In.) Tubes | N/A | 125/bg, 8 bgs/cs |