Caplugs® Evergreen
3.5 mL Caps, Graduated, LDPE, Natural — 222-1577-02I | 500/Bag | Caplugs® Evergreen
3.5 mL Caps, Graduated, LDPE, Natural — 222-1577-02I | 500/Bag | Caplugs® Evergreen
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Quick Reference
| Part Number | 222-1577-02I |
|---|---|
| Capacity | 3.5 mL |
| Tip Type | Standard |
| Tip Detail | standard taper tip with ~45 µL drop size |
| Drop Size | ~45 µL |
| Material | Low-Density Polyethylene (LDPE) |
| Color | Natural |
| Sterility | Sterile — individually sterile-packed |
| Pack Size | 500/Bag |
| Key Use | general-purpose aspirate-and-transfer of any aqueous sample, reagent, or biological fluid |
| Origin | Made in USA |
| Price | $94.90/Bag ($0.1899/pipet) |
Technical Narrative
The Caplugs® Evergreen 222-1577-02I is a 3.5 mL Standard Transfer Pipet, sterile, LDPE (Natural), 500/Bag individually packed. The standard transfer pipet is the general-purpose member of the 222-15xx series — a squeeze-bulb pipet with a standard taper tip producing ~45 µL drops, used wherever non-precise aspirate-and-transfer is needed across microbiology, serology, cell culture, histology, and clinical laboratory workflows. LDPE's flexibility allows the bulb to be compressed and released with a single hand, enabling one-handed pipetting during manual assay protocols.
Low-Density Polyethylene (LDPE): the defining material for transfer pipets — LDPE's flexibility provides progressive, controllable bulb compression for smooth aspirate and dispense with one hand. LDPE's low extractable profile is suited for direct contact with serum, plasma, whole blood, and biological reagents. Sterile individually packed, no autoclaving required. BPA-free, phthalate-free, FDA-compliant,
Procurement economics: $94.90/Bag, $0.1899/pipet. Full 222-15xx transfer pipet series: Standard (, 45 µL, 500/Bag); Graduated (222-1580-02I, 40 µL, 500/Bag); Blood Bank (222-1585-02I, 40 µL, 500/Bag); Fine Tip (222-1590-02I, 20 µL, 400/Bag); Long Stem (222-1595-02I, 40 µL, 400/Bag). LabSupplies.com ships from USA inventory, typically same business day.
Technical Specifications
| Part Number | |
|---|---|
| Caplugs Item # | |
| Capacity | 3.5 mL |
| Tip Type | Standard |
| Tip Detail | standard taper tip with ~45 µL drop size |
| Drop Size | ~45 µL per drop |
| Material | Low-Density Polyethylene (LDPE) |
| Color | Natural |
| Sterility | Sterile — individually sterile-packed |
| Pack Size | 500/Bag (3.5 mL standard transfer pipet, sterile, LDPE, 500/Bag) |
| Primary Application | general-purpose aspirate-and-transfer of any aqueous sample, reagent, or biological fluid |
| BPA / Phthalate | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
| Price | $94.90/Bag ($0.1899/pipet) |
3.5 mL Standard Transfer Pipet Applications
The is suited to the following laboratory workflows where the standard tip geometry provides the key advantage.
| Application | Setting / Protocol | Notes |
|---|---|---|
| Serology / blood banking | Tube serology, antibody ID panels | One-handed aspirate-and-transfer of serum, plasma, reagents |
| Microbiology | Culture tube and broth transfer | Sterile individually packed for aseptic work |
| Histology staining | Staining tray reagent dispensing | ~45 µL drop for standard reagent delivery |
| Cell culture | Cell suspension transfer, passage | LDPE: low extractables for cell-contact applications |
| Urinalysis | Urine sediment preparation | Aspirate sediment from spun tube |
| Clinical chemistry | Reagent transfer, manual assay setup | General-purpose transfer across assay types |
| Teaching / student lab | Educational laboratory exercises | Sterile single-use; no contamination between students |
Chemical Resistance — Low-Density Polyethylene (LDPE)
Compatibility reference for LDPE at typical laboratory conditions.
| Reagent / Condition | Compatibility | Notes |
|---|---|---|
| Aqueous buffers / saline | Excellent | LDPE inert across pH 4–12; standard biological reagents. |
| Serum / plasma / whole blood | Excellent | Standard biological matrix; low extractables for direct blood contact. |
| Ethanol (<70%) | Good | Short-term compatible for tissue dehydration steps. |
| Methanol (<50%) | Good | Short-term compatible. |
| Acetonitrile | Limited | Avoid prolonged LDPE contact; use LDPE for aqueous protocols. |
| Dichloromethane / chloroform | Not Compatible | Causes swelling; do not use. |
| LISS / PEG enhancement media | Excellent | Compatible with standard blood bank enhancement media. |
| AHG (anti-human globulin) reagent | Excellent | Compatible with standard blood bank AHG reagents. |
Clinical & Research Laboratory Applications
Caplugs® Evergreen 3.5 mL standard transfer pipets serve the broadest range of laboratory workflows in the 222-15xx series. Clinical serology and blood bank laboratories use the standard transfer pipet as the primary manual reagent dispensing tool for tube serology testing — one pipet per reagent per patient in the daily antibody screen and type-and-screen workflow. Microbiology laboratories use them for broth-to-tube inoculation, colony suspension, and organism transfer in the laminar flow hood. Histology staining labs dispense hematoxylin, eosin, and counterstaining solutions from staining trays using transfer pipets, where the single-use sterile format eliminates cross-staining-bath contamination. At 500/Bag, the standard transfer pipet is the highest-volume SKU in the series — sized for daily high-throughput serology and serology reference laboratories.
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 transfer pipets sterile?
Yes. Each pipet is individually sterile-packed. Sterility is maintained until the individual wrapper is opened. Single-use — discard after use.
What is the difference between standard and graduated transfer pipets?
The standard pipet has no volume marks — it is used purely for aspirate-and-transfer without volume measurement. The graduated pipet (222-1580-02I) adds printed marks for approximate volume reading. Choose graduated when you need to confirm the transferred volume; choose standard for general non-volume-critical transfer.
Can LDPE transfer pipets be used with organic solvents?
LDPE is compatible with dilute aqueous reagents, serum, plasma, and standard biological matrices. Short-term contact with ethanol (<70%) or methanol (<50%) is generally acceptable. LDPE is not suitable for acetonitrile, acetone, dichloromethane, chloroform, or concentrated organic solvents — use glass or PTFE instruments for organic solvent transfer.
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