Caplugs® Evergreen
30 mL Centrifuge Tubes, Screw Caps, PPC, Yellow — 222-3534-Y80 | 10/Bag | Caplugs® Evergreen
30 mL Centrifuge Tubes, Screw Caps, PPC, Yellow — 222-3534-Y80 | 10/Bag | Caplugs® Evergreen
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Quick Reference
| Part Number | 222-3534-Y80 |
|---|---|
| Capacity | 30 mL |
| Material | Polypropylene Copolymer (PPC) |
| Color | Natural |
| Base | Freestanding (stands without rack) |
| Cap | Yellow screw cap + spork — unassembled (in bag) |
| Includes Spork | Yes — integrated spork for post-centrifuge specimen collection |
| Pack Size | 10/Bag Unassembled |
| Sterility | Sterile |
| Origin | Made in USA |
| Price | $284.55/Bag ($28.4550/tube) |
Technical Narrative
The Caplugs® Evergreen 222-3534-Y80 is a 30 mL Sterile PPC Freestanding Centrifuge Tube with Yellow cap and spork, 10/Bag Unassembled. The 30 mL format provides the primary large-volume sterile centrifuge tube size for cell harvest, suspension culture, and specimen processing above the standard 15 mL conical capacity. The 10/Bag Unassembled format provides cost-effective supply for labs that assemble tubes at the bench before use. Each pack includes a spork — a combined spoon/fork laboratory utensil — allowing direct post-centrifuge specimen collection from the tube pellet or interface without a separate instrument. In stool and environmental testing workflows, the spork enables direct specimen transfer from the freestanding tube to a slide or secondary vessel without contaminating a separate scoop. This reduces per-specimen instrument count and eliminates the need to source sporks separately.
Polypropylene Copolymer (PPC): full methanol and organic solvent compatibility, improved cold-temperature flexibility versus PS, optical clarity for pellet and gradient monitoring. BPA-free, phthalate-free, FDA-compliant,
Procurement economics: $284.55/Bag (10/Bag), $28.4550/tube. Siblings: 222-3534-G80 (30 mL PPC Green Cap+Spork 10/Bag Unassembled); 222-3533-G8D (30 mL PPC Green Cap+Spork 20/Tray Assembled). LabSupplies.com ships from USA inventory, typically same business day.
Technical Specifications
| Part Number | |
|---|---|
| Caplugs Item # | |
| Capacity | 30 mL |
| Geometry | Conical bottom, freestanding base |
| Material | Polypropylene Copolymer (PPC) |
| Color | Natural |
| Cap | Yellow screw cap |
| Includes Spork | Yes — PS spork for specimen collection |
| Assembly | Unassembled (tube + cap [+ spork] in bag) |
| Sterility | Sterile |
| Pack Size | 10/Bag Unassembled |
| BPA / Phthalate | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
| Price | $284.55/Bag ($28.4550/tube) |
30 mL Sterile PPC Freestanding Centrifuge Tube with Spork Applications
The is compatible with the following sterile workflows.
| Application | Setting / Configuration | Notes |
|---|---|---|
| Cell culture harvest (30 mL) | Suspension culture, BSC, centrifuge | Sterile; freestanding stands upright without rack in BSC |
| T-cell expansion | Large-scale T-cell or CAR-T culture | PPC: methanol-compatible for post-harvest ICS staining |
| Density gradient centrifugation | Ficoll/Percoll, 30 mL sterile conical | PPC clarity for interface monitoring; freestanding post-spin |
| Bench centrifuge | Standard rotor adapter, up to 3000×g | Verify adapter for 30 mL tube OD |
| Cold storage | 4°C / —20°C / —80°C | PPC: cold-temp flexibility on retrieval |
| SPE eluate collection (sterile) | Under sterile SPE manifold | PPC: ACN/MeOH compatible; freestanding holds upright |
| BSC workflow | Bag: assemble then BSC load | Freestanding throughout |
| Post-centrifuge specimen collection | Spork for pellet or sediment transfer | Spork included — no separate scoop required |
| Stool/environmental specimen processing | Pellet collection with included spork | Reduces per-specimen instrument count |
Chemical Resistance — Polypropylene Copolymer (PPC)
Compatibility reference for PPC at typical laboratory conditions.
| Reagent / Condition | Compatibility | Notes |
|---|---|---|
| Aqueous buffers / saline | Excellent | PPC inert across pH 2–12. |
| Cell culture media (RPMI, DMEM) | Excellent | Standard sterile cell culture material. |
| Methanol / acetonitrile (<100%) | Excellent | Full organic solvent compatibility — key PPC advantage over PS. |
| Formalin (10% NBF) | Excellent | Compatible for post-harvest fixation. |
| Ficoll / Percoll density media | Excellent | PPC: compatible with standard gradient media. |
| DMSO (<10%) | Excellent | Compatible with cryoprotectant concentrations. |
| Cold storage (—80°C) | Excellent | PPC: improved flexibility vs PS at cryogenic retrieval. |
| Dichloromethane / chloroform | Not Compatible | Causes cracking; do not use. |
Clinical & Research Laboratory Applications
Caplugs® Evergreen 30 mL sterile PPC freestanding centrifuge tubes with yellow caps and sporks serve cell biology, clinical microbiology, and environmental testing laboratories requiring a complete sterile specimen processing kit in a single tube assembly. The included spork eliminates the need to source a separate sterile scoop or spatula for post-centrifuge pellet collection — in stool testing for ova and parasites, C. difficile, and fecal microbiota analysis, the spork allows direct pellet transfer from the tube to the analysis substrate. The yellow cap variant provides visual tube differentiation from green-cap tubes in workflows where multiple tube types are processed simultaneously.
U.S. Manufacturing, Quality & Institutional Procurement
Caplugs® Evergreen products are manufactured in the United States under ISO 9001 quality management from FDA-compliant, food-contact-grade resins. BPA-free, phthalate-free, and latex-free, with material-disclosure documentation supporting CAP, CLIA, and ISO 15189 laboratory accreditation audits.
LabSupplies.com is an authorized dealer for the full Caplugs Evergreen catalog and ships directly from USA inventory — typically same business day for stocking SKUs. We offer below retail pricing on volume orders, tiered institutional and academic pricing, and direct support for grant-funded laboratories and government procurement channels. Lab managers and procurement officers can request a written quote or speak with a product specialist directly from our sales engineering team.
Frequently Asked Questions
Are the tubes sterile?
Yes. Sterile — bag sterile-packed as specified.
What is the spork included with each tube?
The spork is a combined spoon/fork laboratory utensil — a compact PS instrument designed for direct post-centrifuge specimen collection from the tube pellet, sediment, or interface. It eliminates the need to source a separate sterile scoop or spatula for specimen transfer steps, reducing per-specimen instrument count and workflow complexity.
When should I choose the yellow cap vs the other cap color?
Cap color provides visual tube identification — use yellow-cap tubes when your workflow requires differentiation from green-cap tubes processed in the same run or rack. Both green and yellow cap versions are identical in material, volume, spork inclusion, and price.
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