2.0 mL Microcentrifuge Tubes, Tethered Caps, PPC, Yellow — 214-3442-Y80 | 250/Bag | Caplugs® Evergreen

2.0 mL Conical Flat Microcentrifuge Tubes with Tethered Cap — PPC, Yellow, 250/Bag (214-3442-Y80)

These 2.0 mL polypropylene copolymer (PPC) microcentrifuge tubes feature a permanently tethered flat-top cap, molded volume graduations, and a yellow color for fast visual identification in multi-tube workflows. Supplied non-sterile in 250/Bag packaging, they are engineered for standard 2.0 mL microcentrifuge rotor positions and deliver the impact resistance and flexibility of PPC construction — reducing cracking risk during high-speed centrifuge runs compared with standard PP homopolymer. The manufacturer part number 214-3442-Y80 can be used when ordering to confirm the exact configuration.

Technical Specifications

Applications

• PCR setup and enzyme reaction preparation requiring a secure, leak-resistant closure
• DNA and RNA extraction workflows benefiting from the low dead-volume conical bottom
• Cell pelleting and microvolume sample collection in clinical and research centrifuge runs
• High-throughput pipetting workflows where single-handed cap operation and no-cap-loss design reduce interruption
• Clinical microvolume sample processing with flat-cap labeling for direct marker identification and lot traceability
• High-density tube storage using the stable flat-cap stacking geometry

Chemical Resistance

Quality & Procurement

Made in USA, these Caplugs® Evergreen microcentrifuge tubes are manufactured from BPA-free, phthalate-free polypropylene copolymer resin with lot-to-lot dimensional consistency for reliable rotor fit. The sealed 250/Bag format maintains product integrity from warehouse receipt through point-of-use, supporting traceability requirements in CAP-, CLIA-, and ISO 15189-regulated laboratory environments. LabSupplies.com is an authorized Caplugs® Evergreen dealer, shipping from USA inventory with tiered volume pricing available for institutional purchasers, core facilities, and grant-funded laboratories.

Frequently Asked Questions

Are these microcentrifuge tubes autoclavable?
The polypropylene copolymer (PPC) material is generally autoclavable; however, the tethered cap hinge should be evaluated for your specific cycle parameters. Because these tubes are supplied non-sterile, many labs autoclave them in-house prior to RNA or sensitive PCR work. Confirm compatibility with your autoclave protocol before routine use.

What makes the tethered cap better than a snap-on cap in high-throughput work?
The cap is permanently attached via a flexible hinge, so it cannot be misplaced, mixed with another tube's cap, or accidentally contaminate an adjacent sample during rapid open-close cycling. Single-handed operation also keeps the second hand free for pipetting, reducing repetitive-motion fatigue and workflow interruptions.

Can I write directly on the cap, or do I need labels?
Yes — the flat-top cap provides a stable, smooth writing surface compatible with standard laboratory markers. The flat geometry also allows tubes to be stacked top-to-top in storage racks, making the labeling visible without removing the tube from the rack.

How does yellow color coding help in multi-tube workflows?
Yellow provides immediate visual contrast against common white, natural, or blue tubes in a shared microcentrifuge rack. Assigning yellow to a specific sample type, extraction step, or reagent set lets technicians confirm tube identity at a glance and reduces the risk of processing errors during high-density runs.