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

TPP Premium Conical 15 and 50 mL Centrifuge Tubes

TPP Premium Conical 15 and 50 mL Centrifuge Tubes are designed to meet the rigorous demands of modern laboratories. Manufactured from high-quality polypropylene (PP) and polystyrene (PS), these tubes are suitable for centrifugation, freezing, boiling, and long-term storage without cracking, buckling, or contamination.

Leak-proof screw caps with internal grooves ensure gas- and aerosol-tight sealing, while precise graduations allow for accurate sample measurement. The tubes feature a white writing surface for easy labeling on both the cap and side of the tube. Sterile, gamma-irradiated, and certified DNAse/RNAse-free, TPP PREMIUM Conical Tubes are perfect for applications ranging from reagent aliquoting to cell line cryopreservation and media filtration.

Key Features

• Freezing and boiling resistant; polypropylene tubes maintain integrity from -190°C to 100°C
• Buckle- and crack-proof during centrifugation
• Leak-proof screw caps with internal grooves, gas- and aerosol-tight
• Accurate graduations: 0.1 mL (15 mL) and 0.5 mL (50 mL)
• White writing surface for easy labeling on cap and tube
• Optimal material purity; no additives, biocides, or slip agents
• Outstanding optical clarity for easy sample observation
• Multiple application options: centrifugation, storage, filtration, cryopreservation

Applications

• Aliquoting and centrifuging reagents
• Long-term sample storage and cryopreservation
• Media filtration and storage
• Cell line freezing in isopropanol baths
• Minimizing contamination and maintaining sample integrity

Quality Assurance

• Sterile (gamma irradiated)
• Certified DNAse/RNAse, pyrogen, and heavy metal-free
• High optical clarity for reliable sample visualization

Specifications
 

Contact us for free samples and discover how TPP Premium Conical Centrifuge Tubes
can ensure reliable sample integrity and streamline your lab workflows.

MTC™ Bio 15 mL Centrifuge Tubes

Leakproof, Durable, and Freezer-Safe Tubes for Everyday Lab Use.

These 15 mL centrifuge tubes are manufactured from premium-grade polypropylene (PP), offering superior clarity, strength, and chemical resistance for routine laboratory procedures. These tubes are designed for high-speed centrifugation, withstanding up to 12,000 x g, and are ideal for sample prep, pelleting, cell culture, and more.

Each tube features a frosted writing surface and flat-top screw cap for easy labeling and leak-resistant sealing. Select models offer a skirted (self-standing) base, allowing them to stand upright on the benchtop without a rack, perfect for hands-free use and enhanced workflow efficiency.

All 15 mL tubes are sterile and certified RNase-, DNase-, pyrogen-, and cytotoxin-free, ensuring the integrity of sensitive biological samples. Available in bags, or eco-friendly plastic racks for improved lab organization and storage.

Key Features

• Made of high-quality polypropylene for durability and clarity
• Withstands centrifugation up to 12,000 x g
• Leakproof to 95 kPa / 14 psi
• Freezer-safe down to -86°C
• Flat-top caps for easy labeling and secure closure
• Available in self-standing (skirted) or conical bottom
• Sterile, RNase, DNase, pyrogen, and cytotoxin-free
• Supplied bagged or in eco-plastic racks
• Compatible with standard 15 mL centrifuge rotors

Applications

• Sample collection and storage
• Cell culture and pelleting
• DNA/RNA isolation
• Clinical and diagnostic testing
• Freezing and centrifugation of biological fluids

MTC™ Bio 50 mL Centrifuge Tubes

Durable, Leakproof, and Freezer-Safe for High-Speed Centrifugation.

These 50 mL centrifuge tubes are built for strength, clarity, and reliability in demanding lab environments. Manufactured from premium polypropylene, these tubes deliver excellent chemical resistance, high clarity for sample visibility, and outstanding durability during high-speed centrifugation.

Designed to withstand up to 15,000 x g RCF, these 50 mL tubes are ideal for large-volume sample prep, pelleting, and storage. The flat-top, screw-on caps ensure a secure, leakproof seal up to 95 kPa (14 psi) and provide a convenient surface for labeling.

Choose from skirted self-standing tubes (for benchtop use without a rack) or conical-bottom options for compatibility with standard tube holders and centrifuge rotors. All tubes are certified sterile and free of RNase, DNase, pyrogens, and cytotoxins. Available in bagged, racked, or Eco-Racked formats to suit any lab workflow.

Key Features

• 50 mL capacity – ideal for high-volume lab work
• Made from high-strength polypropylene
• Withstands up to 15,000 x g centrifugal force*
• Leakproof screw-cap design (95 kPa / 14 psi)
• Available in skirted (self-standing) and conical bottom formats
• Freezer-safe to -86°C
• Frosted surface for easy writing and sample identification
• Compatible with standard rotors and racks
• Sterile and certified RNase-, DNase-, pyrogen-, and cytotoxin-free 

Applications

• Large-volume centrifugation
• Cell pelleting and sample prep
• Tissue culture
• Clinical and molecular biology labs
• Sample storage and transport

*Performance specifications refer to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.
 

MTC™ Bio 10 mL Centrifuge Tubes

Perfect Mid-Range Solution Between 5 mL and 15 mL Tubes.

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.

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.

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 waste 

Specifications
 

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

 

MTC™ Bio 30 mL Centrifuge Tubes

Leakproof, Freezer-Safe, and Self-Standing for Reliable Everyday Use.

These 30 mL centrifuge tubes offer the ideal balance between standard 15 mL and 50 mL sizes, providing extra capacity without the bulk. Made from high-clarity, medical-grade polypropylene, these tubes are built for durability and optimal performance in high-demand laboratory environments.

The 30 mL model features a skirted (self-standing) bottom, eliminating the need for separate tube racks—ideal for hands-free handling and improved workflow. Each tube includes a flat-top, screw-on cap designed for easy labeling and leakproof sealing up to 95 kPa (14 psi). These tubes can be safely frozen down to -86ºC and are rated for centrifugation up to 7,000 x g when used with appropriate rotors and adapters.

Every 30 mL centrifuge tube is sterile, RNase-, DNase-, pyrogen-, and cytotoxin-free, ensuring sample purity and integrity. Available bagged or racked to meet your lab's organizational needs.

Key Features

• 30 mL volume—ideal for mid-capacity applications
• Made of high-strength polypropylene for chemical and centrifugal resistance
• Withstands up to 7,000 x g RCF
• Leakproof design (95 kPa / 14 psi) with flat-top screw caps
• Skirted base allows tubes to stand upright without racks
• Freezer-safe to -86C
• Frosted surface for easy writing and labeling
• Sterile and certified free of RNase, DNase, pyrogens, and cytotoxins
• Supplied in bags or eco-friendly plastic racks

Applications

• Sample collection and processing
• Mid-volume centrifugation
• Cell culture, pelleting, and storage
• Clinical and life science research
• Freezing and short-term sample preservation

MTC™ Bio 25 mL Centrifuge Tubes

MTC™ Bio 25 mL Centrifuge Tubes are the perfect solution for applications requiring more volume than 15 mL tubes but less than 50 mL. Designed to close the gap between standard sizes, these mid-volume conical tubes are ideal for midipreps, sample preparation, centrifugation, mixing, and long-term storage.

With a 33% shorter height and a wide diameter identical to 50 mL tubes, these low-profile tubes enhance efficiency by allowing faster pellet re-suspension and 100% sample recovery, even with small volumes. Their unique design also helps prevent cross-contamination, thanks to a pipette-friendly, wide-mouth opening that reduces accidental contact with the inner tube wall.

Made of high-clarity polypropylene, each 25 mL tube can withstand up to 17,000 x g RCF (relative centrifugal force) and features a 360º support rim beneath the screw cap. This rim fits most standard 50 mL tube rotors, racks, blocks, and centrifuge shields, eliminating the need for adapters—similar to the convenience of 1.5 mL microcentrifuge tubes.

These conical tubes come gamma sterilized, are RNase, DNase, and pyrogen free, and are available in bags or racks of 25, with caps pre-attached for ease of use.

Key Features

• 25 mL capacity – fills the gap between 15 mL and 50 mL tubes
• Shorter height & wider diameter – saves storage space and improves sample handling
• Compatible with 50 mL centrifuge rotors – no adapters needed
• 360° support rim – ensures secure fit in racks and rotors
• Printed volume graduations – clear markings from 5 mL to 2 mL
• High-speed performance – withstands up to 17,000 x g RCF
• Sterile & certified – RNase, DNase, and pyrogen free
• Reduced waste and freight costs – eco-friendly compact design 

Specifications
 

Max. RCF	17,000 x g
Temp. Range	-86°C to 121°C
Material	Tube: Polypropylene | Cap: HDPE
Dimensions (D x H)	1.14 x 3.03 In. | 29 x 77 mm

 

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