
1–200 µL Graduated Pipet Tips, Outer Ribs, PP, Natural — Oxford® Compatible (230-1484-03K)
These Caplugs® Evergreen Visu-Chek™ pipet tips cover the full 1–200 µL working range and serve as a cost-effective replacement for Oxford® pipettors, supplied non-sterile in a convenient 1000/Bag bulk format. Molded from polypropylene in a natural (clear) color, each tip features Visu-Chek™ graduation markings that let technicians confirm aspirated volume at a glance through the transparent tip body — eliminating the need to verify the pipettor display for routine volume checks. Outer longitudinal ribs add rigidity and ergonomic grip, promoting a secure, leak-free seal during both tip attachment and ejection in high-frequency pipetting workflows.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 230-1484-03K |
| Volume Range | 1–200 µL |
| Tip Design | Graduated, Outer Ribs |
| Material | Polypropylene (PP) |
| Color | Natural (Clear) |
| Sterility | Non-Sterile |
| Pack Size | 1000/Bag |
| BPA / Phthalate-Free | Yes |
| Compatible Instruments | Oxford® Pipettors |
| Country of Origin | USA |
Applications
- Routine pipetting and reagent dispensing across the 1–200 µL range with in-line volume confirmation via graduation markings
- Molecular biology workflows including PCR setup, gel loading, and nucleic acid dilutions
- ELISA sample and reagent addition requiring precise low-volume transfers
- Clinical chemistry and serum/plasma handling where rapid visual volume verification supports throughput
- High-frequency pipetting environments where the outer-rib grip reduces attachment force and operator fatigue
- CAP/CLIA and ISO 15189 accredited laboratories requiring lot-traceable consumables
Compatibility
Part number 230-1484-03K is engineered as a drop-in replacement tip for Oxford® pipettors in the 1–200 µL volume class. The outer rib geometry provides a positive, tactile fit on Oxford® pipettor channels, ensuring a leak-free seal across the full working range without modification to pipettor settings. Laboratories transitioning from OEM Oxford® tips should confirm the specific pipettor model and cone dimensions to ensure proper fit, as Oxford® offers multiple volume models that may require different tip sizes.
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 Visu-Chek™ tips are produced under ISO 9001 quality management using FDA-compliant, BPA-free, phthalate-free polypropylene resin. Lot-level controls verify graduation accuracy, outer-rib geometry, and Oxford® instrument fit across every bag, supporting the documentation requirements of CAP/CLIA and ISO 15189 accredited laboratories. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered volume pricing available for institutional, hospital, and grant-funded accounts.
Frequently Asked Questions
Are these tips sterile, and can they be autoclaved?
These tips are supplied non-sterile. Polypropylene is autoclavable, but sterility of the autoclaved tips is not guaranteed by the manufacturer; for applications requiring certified sterility, a dedicated sterile tip product should be used.
What do the Visu-Chek™ graduation markings actually show?
The graduation markings are printed directly on the outer surface of the transparent PP tip body, allowing the operator to read the aspirated volume in real time during aspiration — a useful confirmation check without having to reference the pipettor's digital display.
Will these tips fit Oxford® pipettors other than the 200 µL model?
The 1–200 µL tip size is designed to fit Oxford® pipettors in that volume class. Oxford® pipettors configured for other volume ranges use different tip sizes, so verify your specific model's cone dimensions before substituting these tips for your current supply.
What is the advantage of the outer rib design over a smooth-bodied tip?
The longitudinal outer ribs increase tip rigidity and provide a positive tactile grip point, reducing the force needed to attach and eject tips. This is particularly beneficial in labs running high-volume pipetting workflows where repetitive tip changes contribute to operator fatigue.