Caplugs® Evergreen
15 mL Centrifuge Tubes, Screw Caps, HDPE, Blue — 222-3010-B2N | 1000/Bag | Caplugs® Evergreen
15 mL Centrifuge Tubes, Screw Caps, HDPE, Blue — 222-3010-B2N | 1000/Bag | Caplugs® Evergreen
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Quick Reference
| Part Number | 222-3010-B2N |
|---|---|
| Product | Blue screw caps for transport vials/15 mL centrifuge tubes |
| Material | High-Density Polyethylene (HDPE) |
| Color | Blue |
| Color Use | color-coded cap identification — Blue cap tubes |
| Pack Size | 1000/Bag |
| Sterility | Sterile |
| Origin | Made in USA |
| Price | $76.39/Bag ($0.0764/cap) |
Technical Narrative
The Caplugs® Evergreen 222-3010-B2N is a Sterile HDPE Blue Screw Cap compatible with transport vials and 15 mL centrifuge tubes, 1000/Bag. Blue caps enable color-coded tube identification in workflows where tube content, collection time point, or patient cohort is differentiated by cap color — a standard practice in high-volume clinical specimen processing. The blue cap is otherwise identical to the Natural cap (222-3010-02N) in material (HDPE), dimensions, and thread specification — the color is purely for visual identification.
High-Density Polyethylene (HDPE): low extractables, leak-resistant threaded seal, broad chemical resistance across aqueous and mild organic matrices. BPA-free, phthalate-free, FDA-compliant,
Procurement economics: $76.39/Bag (1000 caps), $0.0764/cap. Color set: 222-3010-02N (Natural HDPE Caps 1000/Bag); 222-3010-G2N (Green HDPE Caps 1000/Bag); Natural: 222-3010-02N. LabSupplies.com ships from USA inventory, typically same business day.
Technical Specifications
| Part Number | |
|---|---|
| Caplugs Item # | |
| Product | Sterile Blue HDPE screw caps |
| Material | High-Density Polyethylene (HDPE) |
| Color | Blue |
| Color Purpose | Visual tube identification / color-coding |
| Thread | Compatible with Caplugs Evergreen transport vials and 15 mL conical tubes |
| Sterility | Sterile |
| Pack Size | 1000/Bag |
| BPA / Phthalate | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
| Price | $76.39/Bag ($0.0764/cap) |
HDPE Blue Screw Cap Applications
The blue HDPE cap is compatible with the following Caplugs Evergreen transport vials and 15 mL centrifuge tubes.
| Application | Setting / Configuration | Notes |
|---|---|---|
| Color-coded tube identification | Multi-tube specimen workflow | Blue cap = visual identification of tube content or cohort |
| Transport vial capping | Cap onto 222-3005/3007/3010 vials | HDPE Blue cap: leak-resistant threaded seal |
| 15 mL conical capping | Cap onto sterile 15 mL centrifuge tubes | Blue cap for visual tube differentiation in BSC |
| Replacement caps | Replace damaged caps on existing tubes | 1000/Bag: economical replacement cap supply |
| Batch/lot color coding | Multiple specimen batches in same run | Blue cap distinguishes batch from natural/blue caps |
| Shift or time-point marking | Time-stamped specimen collection | Blue cap = specific time point or collection shift |
| Dual-use stocking | One cap SKU, two tube formats | Compatible with both transport vials and 15 mL conicals |
Chemical Resistance — High-Density Polyethylene (HDPE)
Compatibility reference for HDPE at typical laboratory conditions.
| Reagent / Condition | Compatibility | Notes |
|---|---|---|
| Aqueous buffers / saline | Excellent | HDPE inert across pH 2–12. |
| Boric acid preservative | Excellent | Compatible with standard urine transport preservatives. |
| Dilute HCl / H2SO4 (<10%) | Excellent | Compatible with acid preservatives. |
| Methanol / ethanol (<50%) | Good | Short-term compatible. |
| Serum / plasma / urine | Excellent | Standard clinical matrix; low extractables. |
| Transport media (UTM/VTM) | Excellent | HDPE compatible with standard transport media. |
| Cold storage (2–8°C) | Excellent | Standard refrigerator/ice-pack transport. |
| Dichloromethane | Not Compatible | Causes swelling; do not use. |
Clinical & Research Laboratory Applications
Caplugs® Evergreen sterile HDPE blue screw caps serve clinical laboratories and specimen transport kit manufacturers requiring color-coded cap supply for visual tube identification. High-throughput clinical labs running multiple specimen types simultaneously in the same BSC or processing bench use colored caps to differentiate tube contents at a glance without reading labels — blue caps for one specimen type, natural caps for another, green caps for a third. Blue cap tubes are also used in blood bank and hematology settings where blue-top tube conventions are standard for coagulation specimen identification.
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 blue caps sterile?
Yes. Sterile — packed 1000/Bag.
Are the blue caps identical to the natural caps (222-3010-02N) except for color?
Yes. The Blue and Green caps are the same HDPE material, same thread specification, and same price as the Natural cap (222-3010-02N). The color is the only difference — all three are compatible with the same Caplugs Evergreen transport vials and 15 mL centrifuge tubes.
What is the complete color set for these HDPE screw caps?
Natural (222-3010-02N), Blue , Green (222-3010-G2N) — all 1000/Bag, all sterile HDPE, all $61.11 listed price. Additional colors may be available — contact us for current availability.
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