
101–1000 µL Two-Step Tiered Pipet Tips — Finnpipette® Compatible, Blue PP, 1000/Bag
These 101–1000 µL polypropylene pipet tips feature a two-step tiered shaft design engineered to match the tip-channel geometry of Finnpipette® pipettors, delivering secure retention, an airtight seal, and accurate volume delivery across the full working range. Supplied non-sterile in bulk 1000/Bag format, they are an economical replacement for OEM tips in clinical, research, and pharmaceutical laboratory workflows. The blue color follows the widely recognized large-volume tip color convention, enabling fast visual identification at the bench.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 230-1138-B3K |
| Volume Range | 101–1000 µL |
| Tip Design | Two-Step Tiered |
| Material | Polypropylene (PP) |
| Color | Blue |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- Sample preparation and serial dilutions across the 101–1000 µL range in clinical and research laboratories
- Reagent dispensing for ELISA, immunoassay, and biochemical assay workflows
- Specimen processing — serum, plasma, and biological fluid transfers in CAP/CLIA-accredited laboratories
- Pharmaceutical formulation and quality-control pipetting requiring consistent tip geometry and lot traceability
- High-throughput routine pipetting where bulk 1000/Bag supply minimizes restocking interruptions
Compatibility
The two-step tiered shaft profile of these tips is specifically designed to match the tip-channel taper of Finnpipette® pipettors in the 101–1000 µL volume class, providing the secure fit and leak-free seal that universal tips may not reliably deliver on these instruments. Laboratories currently using OEM Finnpipette® tips can transition to part number 230-1138-B3K as a direct replacement. As with any tip substitution, verify the fit against your specific Finnpipette® model, since different volume models within the same instrument family may require different tip geometries.
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol / isopropanol | Good — short-term contact |
| Acetonitrile | Good — short-term contact |
| Aromatic / chlorinated solvents | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen pipet tips are produced from FDA-compliant, BPA-free, phthalate-free polypropylene under rigorous lot-level quality controls that ensure consistent tip geometry, two-step tiered shaft profile, and color uniformity — attributes that matter in accredited clinical and pharmaceutical environments. LabSupplies.com is an authorized dealer of Caplugs® Evergreen laboratory consumables and ships from USA inventory, with tiered volume pricing available for institutional, hospital, and grant-funded procurement programs.
Frequently Asked Questions
Are these pipet tips sterile?
No — they are supplied non-sterile in 1000/Bag bulk packaging. For workflows requiring sterility, contact us about sterile-format alternatives.
What makes the two-step tiered design different from a universal tip?
The two-step tiered shaft profile is contoured to match the specific tip-channel taper of Finnpipette® pipettors. This geometry creates a more secure mechanical fit and an airtight seal than a generic taper can provide, which is critical for accurate volume delivery in the 101–1000 µL range.
Will these tips fit Finnpipette® models other than the 1000 µL version?
The 101–1000 µL tip size is designed for Finnpipette® pipettors in that volume class. Other Finnpipette® models outside this range use tips with different shaft dimensions, so confirm your specific model before substituting these for OEM supply.
Are these tips suitable for CAP- or CLIA-accredited laboratory use?
Yes — lot-level quality controls support the traceability documentation required in accredited clinical laboratory environments. The non-sterile format is appropriate for most clinical chemistry and specimen-processing applications that do not require sterile consumables.