PR1MA™ Screw Cap Tubes & Caps Sold Separately

PR1MA™ threaded tubes offer a clean, safe environment for your important samples!

• Manufactured from high-clarity, ultra-pure polypropylene (meets FDA 21 CFR 177.1520 & USP Class VI).
• Versatile and durable tube developed for secure use in multiple laboratory environments.
• Ideal for boiling applications.
• Numerous tube and cap options to form an ideal combination for specific applications.
• Rated to 20,000 x G.
• Suitable for a wide range of temperatures - from -196°C to +121°C. Note: not for immersion in liquid nitrogen.
• Available in:
• Ribbed (0.5, 1.5, & 2 mL)
• Non-Graduated Clear (0.5 & 1.5 mL)
• Graduated (1.5 & 2 mL): Marked at every 100 µL for easy sample estimation.
• Offered with either skirted or conical bases.
• Non-Graduated, and Ribbed Sided options ideal for high throughput and automated processing
• Certified free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free. Sterile product is certified pyrogen-free.

Tubes for Kit Manufacturers? - Please contact us.  MIDSCI has screw cap tube options available specifically for use in diagnostic kits, providing kit manufacturers the freedom to choose an alternate source of consumables from an experienced and trusted U.S. plastics manufacturer. 
Homogenization Tubes? - Please contact us.  Homogenization calls for a tube that is built to withstand the rigors of lysing applications. When you need to be sure about the tube you select for lysing and bead beating, choose the brand that has the experience, innovation, and reliability of an industry leader.

PR1MA™  SCREW CAPS

Screw Caps are ideal for everyday laboratory applications as well as diagnostic kit manufacturing. From standard caps in bright colors to the molded grip caps with molded O-rings, there is a perfect seal for your important solutions. 

Grip Cap with Rubber Grip & O-ring (PR-SCMC)

• Rubber ribs allow for effortless opening and closingeven when frozen.
• Easy 3/4 turn to open and close.
• Easy labeling surface.
• Contrasting color stripes enable easy branding or organization. 
• Made from ultra-pure polypropylene (meets FDA 21 CFR 177.1520 & USP Class VI) with an inert TPE O-ring molded directly into the cap.
• Temperature range from -196°C to +121°C. Note: not for immersion in liquid nitrogen.
• For use in medical, pharmaceutical and food industry, and molecular biology.
• Need colors see our Assorted Pack (-RB).  Need individual colors or white contact us for special orders.

Standard Caps (PR-SCC)

• Easy 3-4 turn to open and close.
• Synthetic O-ring.
• Available with and without attached tether.  Contact us if you want the tethered option.
• Wide variety of color options.
• Temperature range from -196°C to +121°C. Note: not for immersion in liquid nitrogen.
• For use in medical, pharmaceutical and food industry, and molecular biology.
• Need colors see our Assorted Pack (-RB).  Need individual colors or amber contact us for special orders.

 

PR1MA™ Microcentrifuge Tubes

• Two Cap Styles: To suit customer preference:
• Boil-proof (MCT15) caps are ideal for rigorous high-temp applications and tight storage conditions. Max Fill 1.7 mL with caps open and 1.5 with caps closed. 

Large, boil-resistant (MCT17) caps are easy to open & close, with a large labeling surface. Max Fill 1.7 mL with caps open and 1.5 with caps closed. 

• Crystal-Clear Polymer: Facilitates visualization of samples.
  
• G-Force: Rated to 20,000 x g.  
  
• Graduations: every 100 µL for easy volume estimation.
  
• Low Retention: Available with proprietary NoStick® resin to ensure maximum sample recovery.
  
• Temperature Range: -80° C to +121° C.
  
• Certified: Free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free. Sterile product is certified pyrogen-free.  

Proudly made in the USA! Click here for more made in America products!
  

PR1MA™ Screw Cap Tubes and Caps, Sterile, Assembled

PR1MA™ threaded tubes offer a clean, safe environment for your important samples!

• Manufactured from high-clarity, ultra-pure polypropylene (meets FDA 21 CFR 177.1520 & USP Class VI).
• Versatile and durable tube developed for secure use in multiple laboratory environments.
• Ideal for boiling applications.
• Numerous tube and cap options to form an ideal combination for specific applications.
• Rated to 20,000 x G.
• Suitable for a wide range of temperatures from -196°C to +121°C. Note: not for immersion in liquid nitrogen.
• Available in:
• Ribbed (0.5, 1.5, & 2 mL)
• Non-Graduated Clear (0.5 & 1.5 mL)
• Graduated (1.5 & 2 mL): Marked at every 100 L for easy sample estimation.
• Offered with either skirted or conical bases.
• Non-Graduated, and Ribbed Sided options ideal for high throughput and automated processing
• Certified free of detectable RNase, DNase, DNA, PCR inhibitors, and tested pyrogen-free. Sterile product is certified pyrogen-free.

Tubes for Kit Manufacturers? - Please contact us.  MIDSCI has screw cap tube options available specifically for use in diagnostic kits, providing kit manufacturers the freedom to choose an alternate source of consumables from an experienced and trusted U.S. plastics manufacturer. 

Homogenization Tubes? - Please contact us.  Homogenization calls for a tube that is built to withstand the rigors of lysing applications. When you need to be sure about the tube you select for lysing and bead beating, choose the brand that has the experience, innovation, and reliability of an industry leader.

PR1MA™  SCREW CAPS

Screw Caps are ideal for everyday laboratory applications as well as diagnostic kit manufacturing. From standard caps in bright colors to the molded grip caps with molded O-rings, there is a perfect seal for your important solutions. 

Grip Cap with Rubber Grip & O-ring (PR-SCMC)

• Rubber ribs allow for effortless opening and closingeven when frozen.
• Easy 3/4 turn to open and close.
• Easy labeling surface.
• Contrasting color stripes enable easy branding or organization. 
• Made from ultra-pure polypropylene (meets FDA 21 CFR 177.1520 & USP Class VI) with an inert TPE O-ring molded directly into the cap.
• Temperature range from -196°C to +121°C. Note: not for immersion in liquid nitrogen.
• For use in medical, pharmaceutical and food industry, and molecular biology.

Standard Caps (PR-SCC)

• Easy 3/4 turn to open and close.
• Synthetic O-ring.
• Available with and without attached tether.  Contact us if you want the tethered option.
• Wide variety of color options.
• Temperature range from -196°C to +121°C. Note: not for immersion in liquid nitrogen.
• For use in medical, pharmaceutical and food industry, and molecular biology.

• Sterile, polypropylene
  
• DNAse/RNAse and pyrogen-FREE
• White shaded writing area
• Black graduations
• Racked or bagged
• Temp Range: -80°C to +40°C
• The 15 mL tubes can withstand up to 12,000 (RCF)g, and the 50 mL can withstand up to 16,000 (RCF)g. 

New Look, Same Reliable Product - Now from PR1MA™!

PR1MA™ Rainbow Centrifuge Tubes

High-Performance, Color-Coded Sample Clarity.

PR1MA™ Rainbow Centrifuge Tubes combine high-performance engineering with vibrant color-coded caps for effortless sample organization. Available in 15 mL and 50 mL conical formats, these tubes are made from premium-grade polypropylene with uniform wall thickness for outstanding clarity, durability, and centrifugal strength.

Engineered for a variety of lab applications, including stem cell research, PR1MA™ Rainbow Centrifuge Tubes are certified sterile, RNase-free, DNase-free, pyrogen-free, and cytotoxin-free. The leak-proof screw caps ensure secure storage, and both tubes and caps are safe for ultra-low temperature storage down to -86°C.

With maximum RCF ratings of 12,000 x g (15 mL) and 15,000 x g (50 mL), these tubes are ideal for demanding centrifugation tasks using appropriate rotors, cushions, and adapters.

Key Features

• Color-coded screw caps for easy sample tracking
• 15 mL tubes rated to 12,000 x g, 50 mL tubes rated to 15,000 x g
• Made from high-clarity, premium polypropylene
• Certified sterile, RNase/DNase/pyrogen/cytotoxin free
• Leak-proof design ensures secure sample containment
• Safe for -86°C ultra-low temperature storage
• Suitable for stem cell research, biobanking, and general lab use

Whether you're spinning down precious samples or storing them long-term, PR1MA™ Rainbow Centrifuge Tubes deliver uncompromising quality and reliability in every tube.

Specifications
 

Item	Size
PR-CT2715	0.67 x 4.65 In. | 17 x 118 mm
PR-CT2716	0.67 x 4.65 In. | 17 x 118 mm
PR-CT2750	1.14 x 4.53 In. | 29 x 115mm
PR-CT2751	1.14 x 4.53 In. | 29 x 115mm

 
PR1MA™ Microcentrifuge Tube Aluminum Cooler Racks

• Keep Microcentrifuge Tubes cold or hot on the bench
• Non-Skid rubber feet provide a stable platform for loading samples
• Gets cold in as few as 25 minutes
• Samples stay cold on your bench top for up to an hour
• Small footprint minimizes bench top and freezer space used
• Precisely drilled wells allow for maximum heat transfer between the block and samples

Microcentrifuge, Tube, Aluminum, Cooler, Racks, PR1MA, MIDSCI, Laboratory Supplies, High-Quality, Research, Consumables, Reagents, Equipment, Customer Service, Quick Shipping, Satisfaction Guarantee, Personalized Solutions, Universities

PR1MA™ Cryo Tube Aluminum Cooler Rack

• Keep Cryo Tubes cold on the bench
• Non-Skid rubber feet provide a stable platform for loading samples
• Gets cold in as few as 25 minutes
• Samples stay cold on your bench top for up to an hour
• Small footprint minimizes bench top and freezer space used
• Precisely drilled wells allow for maximum heat transfer between the block and samples

PR1MA™ PCR Aluminum Cooler Racks

• Keep PCR Tubes, Strip Tubes, and PCR Plates (96 & 384) cold or hot on the bench.
• Non-Skid rubber feet provide a stable platform for loading samples.
• Gets cold in as few as 25 minutes.
• Samples stay cold on your bench top for up to an hour.
• Small footprint minimizes bench top and freezer space used
• Precisely drilled wells allow for maximum heat transfer between the block and samples

Specifications 

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TPP PREMIUM Conical 15 and 50 mL Centrifuge Tubes

"No more cracking at -80°C or buckling during spins!"

TPP Premium Conical Centrifuge Tubes are designed for exceptional performance that surpasses standard 15 mL and 50 mL conical tubes.

Ideal for aliquoting and centrifuging reagents

• Freezing & boiling proof
  
• Tubes and Caps are manufactured to withstand equivalent centrifugal force, thus eliminating abnormal tube buckling
  
• Screw Caps are designed with pronounced internal grooves
  
• Gas and Aerosol tight
  
• Enables a fitted seal to prevent leaking during spinning, transportation or storage
  
• Protects sample integrity by reducing contamination
  
• Graduations all the way down to 0.1 mL (for 15 mL tubes/ 0.5 mL for 50 mL tubes)
  

• Manufactured with the highest quality of virgin raw materials
• Minimizes sample interaction with the centrifuge tube material while preventing leaching that decreases sample integrity
• No additives, slip agents, biocides or plasticizers are utilized in the manufacturing process
  

•  On top of cap - promotes easy identification of tubes in rack
• On side of tube - permits detailed description labeling

• Centrifugation  & Storage - 15 & 50 mL PP conical tube , 15 mL PS conical tube and 13 mL PS flat tube
• Media filtration & Storage - 50 mL PP skirted tube
• Cell line cryovial freezing in isopropanol bath - 15 mL PS conical tube

Quality Assurance

• Sterile (gamma irradiated)
• DNAse/RNAse, pyrogen, and heavy metal-free

Round Bottom Snap Cap Tubes

No more fumbling with caps for your tubes.

MTC Bio’s new round bottom snap cap culture/centrifuge tubes adopt the conveniences of popular 1.5 mL microcentrifuge tubes in higher capacities of 5 mL, 7 mL, and 10 mL. Prevent a common source of cross-contamination in the lab by completely eliminating the threat of mismatched caps.

These durable, polypropylene tubes are supplied sterile and are autoclavable. All tubes feature molded graduations and the 5 and 7 mL tubes have frosted marking areas. Tubes are packed in easy-to-open sterile bags of 100.

• Microtube convenience in larger capacities
• Attached caps seal at the rim with a “click”
• Sterile, easy-open bags of 100 tubes
• Molded graduations and frosted marking area

New Look, Same Reliable Product - Now from PR1MA™!

PR1MA™ 5 and 10 mL Transport Tubes

Leak-Proof, 95kPa Compliant, and Sterile.

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.

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.

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

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