Name: ScrewSeal™ Polypropylene Microcentrifuge Tubes
Brand: MTC Bio
SKU: BTS-C3150-S
Price: 245.37 USD
Availability: InStock

ScrewSeal™ Polypropylene Microcentrifuge Tubes Microcentrifuge Tubes MTC Bio

ScrewSeal™ Polypropylene Microcentrifuge Tubes C3150-S | ScrewSeal 1.5mL | 12.8x45mm | Sterile | O-ring | Conical | Non-graduated | Assembled | 100 bag | 10 bags case | 1000 Total Microcentrifuge Tubes MTC Bio

ScrewSeal™ Polypropylene Microcentrifuge Tubes C3150-SL | ScrewSeal 1.5mL | 13x47mm | Loop cap | Sterile | O-ring | Conical | Non-graduated | Assembled | 100 bag | 10 bags case | 1000 Total Microcentrifuge Tubes MTC Bio

ScrewSeal™ Polypropylene Microcentrifuge Tubes C2230 | ScrewSeal 2.0mL | 12.8x46mm | Screw cap | O-ring | Graduated | Self-standing | Assembled | 100 bag | 10 bags case | 1000 Total Microcentrifuge Tubes MTC Bio

ScrewSeal™ Polypropylene Microcentrifuge Tubes C2231-W | ScrewSeal 2.0mL | 12.8x46mm | Screw-cap | O-ring | Graduated | Self-standing | Assembled | Individually wrapped | 500 count total Microcentrifuge Tubes MTC Bio

ScrewSeal™ Polypropylene Microcentrifuge Tubes C2230-AM | ScrewSeal 2.0mL | 12.8x47.4mm | Amber screw cap | O-ring | Graduated | Self-standing | Amber assembled | 100 bag | 10 bags case | 1000 Total Microcentrifuge Tubes MTC Bio

ScrewSeal™ Polypropylene Microcentrifuge Tubes

$245.37

Leak-proof screw caps for samples that can't afford to leak. MTC Bio ScrewSeal™ microtubes arrive sterile with assembled O-ring caps, ready for freezing, boiling, and shipping.

Sealed tight: Silicone O-ring seal from −90 °C to +121 °C
High-speed ready: Centrifuge up to 22,000 × g
Sample-safe: Sterile and RNase/DNase/pyrogen-free
Options: Loop caps, amber light-blocking, and individually wrapped

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Fast Delivery

Most items ship same day

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Manufacturer Warranty

All products are covered by manufacturer warranty

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After-Sale Support

24/7 support

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Screw-Cap Security for Samples That Can't Leak

When a snap cap isn't enough, whether you're freezing to −90 °C, boiling, autoclaving, or shipping samples across the country, ScrewSeal™ screw-cap microtubes lock your sample in. Every tube comes with an assembled cap and a silicone O-ring that holds a leak-proof seal across the full −90 °C to +121 °C range.

Molded from ultra-clear polypropylene, ScrewSeal™ tubes let you see pellets and volumes at a glance. They arrive sterile and certified RNase-, DNase-, and pyrogen-free, ready for molecular, clinical, and pharmaceutical work.

22,000 × g*

Max centrifugation

−90 to +121 °C

Leak-proof O-ring seal range

Sterile

RNase/DNase/pyrogen-free

Caps On

Assembled and ready to use

Why Labs Choose ScrewSeal™

Silicone O-Ring Seal
A positive, leak-proof seal time after time, even through freeze-thaw cycles.

Ultra-Clear Polypropylene
Easy sample and pellet visualization.

Loop-Cap Option
C3150-SL loop caps are easy to grip with gloves and can be tethered or labeled.

Self-Standing 2.0 mL
Skirted bottoms stand upright on the bench, no rack required.

Molded Graduations
2.0 mL formats have permanent molded graduations that won't rub off.

Individually Wrapped
C2231-W wraps each tube for single-use sterility in clinical and field work.

ScrewSeal amber light-blocking microtubes

Light-Blocking Amber for Sensitive Samples

Light degrades more samples than most labs realize: fluorophores, vitamins, photosensitive drugs, and many reagents. The C2230-AM amber tube and cap block light while keeping the same O-ring seal and self-standing design.

Use amber for photosensitive compounds, fluorescent probes, and any sample stored outside a dark freezer.

Choose Your Format

1.5 mL Conical

Catalog No.: C3150-S (screw cap), C3150-SL (loop cap)

Best for: Freezer storage, spin-down, and sample transport

2.0 mL Self-Standing

Catalog No.: C2230 (clear), C2230-AM (amber)

Best for: Bench-top handling, boiling, and light-sensitive samples

2.0 mL Individually Wrapped

Catalog No.: C2231-W, 500/cs

Best for: Clinical collection and single-use sterility

Need More Options?

Looking for 0.5 mL formats, printed graduations, or loop caps on a 2.0 mL tube? See our ClearSeal™ Screw Cap Microtubes, packed in resealable bags of 50.

For everyday snap-cap work, the SureSeal S™ Sterile Microcentrifuge Tubes are the value choice.

Typical Applications

Long-term −80 °C sample storage
Boiling and heat-block incubation
Autoclaving buffers and media aliquots
Sample transport and shipping
Clinical and diagnostic specimen storage
Light-sensitive reagent storage (amber)

Tip for Leak-Free Freezing

Tighten caps firmly but don't over-torque. The O-ring does the sealing. Let samples reach room temperature before opening to avoid condensation getting pulled inside.

*Centrifugation rating refers to liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.

Frequently Asked Questions

Are ScrewSeal™ tubes a good alternative to Sarstedt screw cap micro tubes?

For most freezing, boiling, and transport applications, yes. ScrewSeal™ tubes are sterile with assembled silicone O-ring caps, seal from −90 °C to +121 °C, and include amber and individually wrapped options. Confirm fit in your specific racks and rotor. Sarstedt is a trademark of its respective owner; Blue Tiger Scientific is not affiliated.

What temperature range can ScrewSeal™ tubes seal across?

The silicone O-ring provides a leak-proof seal from −90 °C to +121 °C.

How fast can ScrewSeal™ tubes be centrifuged?

Up to 22,000 × g for liquids with a specific gravity of 1.0, using appropriate rotors, cushions, and adapters.

Is there a light-blocking option?

Yes. The C2230-AM is a 2.0 mL self-standing tube with an amber tube and cap for light-sensitive samples.

Are the caps already on the tubes?

Yes. All ScrewSeal™ tubes come with caps assembled and are sterile, RNase-, DNase-, and pyrogen-free.

Are individually wrapped tubes available?

Yes. The C2231-W 2.0 mL tube is individually wrapped for single-use sterility, 500 per case.

Specification	Detail
Brand	MTC Bio
Product	ScrewSeal™ Screw Cap Microcentrifuge Tubes
Material	Ultra-clear polypropylene
Seal	Assembled screw cap with silicone O-ring
Seal Range	−90 °C to +121 °C
Max Centrifugation	22,000 × g*
Sterility	Sterile; RNase-, DNase-, pyrogen-free
Volumes	1.5 mL, 2.0 mL
Options	Loop caps, amber light-blocking, individually wrapped

Ordering Information

Cat. No.	Volume	Size	Style	Graduations	Packaging	Qty/Cs
C3150-S	1.5 mL	12.8 × 45 mm	Conical, screw cap	Non-graduated	100/bag, 10 bags	1000
C3150-SL	1.5 mL	13 × 47 mm	Conical, loop cap	Non-graduated	100/bag, 10 bags	1000
C2230	2.0 mL	12.8 × 46 mm	Self-standing, screw cap	Molded	100/bag, 10 bags	1000
C2230-AM	2.0 mL	12.8 × 47.4 mm	Self-standing, amber	Molded	100/bag, 10 bags	1000
C2231-W	2.0 mL	12.8 × 46 mm	Self-standing, screw cap	Molded	Individually wrapped	500

MTC Bio Shipping and Return Policy

At Blue Tiger Scientific, we proudly distribute authentic MTC Bio products. The following policies apply to all purchases made through our store. All return requests must be initiated with Blue Tiger Scientific before being processed by MTC Bio.

Shipping Policy

Orders for MTC Bio products are fulfilled and shipped directly by MTC Bio using FedEx or UPS, with FedEx Ground as the default shipping method unless otherwise specified.

Expedited shipping options (2-Day, Overnight) are available at an additional cost.
MTC Bio only ships to residential or business addresses within the United States—no PO Boxes.
Orders placed after business hours, weekends, or holidays will be processed the next business day, pending product and carrier availability.
Shipping timelines may vary based on product availability, order size, and carrier logistics.
Blue Tiger Scientific and MTC Bio are not responsible for carrier delays, weather-related disruptions, or unforeseen delivery issues once the order has shipped.

Return Policy

If a return is necessary, customers must start the process with Blue Tiger Scientific before returning any products to MTC Bio.

All return requests must be initiated with Blue Tiger Scientific before shipping a product back to MTC Bio.
Customers must obtain a Return Merchandise Authorization (RMA) number from Blue Tiger Scientific before returning any item.
Customers are responsible for return shipping costs unless otherwise stated.
Opened or used products cannot be returned—only unused items in original packaging will be accepted.
Unauthorized returns (without an RMA) will be refused and returned at the customer’s expense.
Returned items are subject to inspection, and a 20% restocking fee may be applied.
Refunds will cover the product cost only—shipping fees paid at the time of purchase are non-refundable.
Certain items, such as custom-built, special-order, or hazardous materials, may not be eligible for return.

Important Notes

Some MTC Bio products are custom-made or built to order; shipping will occur once the product is ready.
In the event of backorders, partial shipments may be requested.
Occasional delays due to material shortages, import issues, or carrier problems.