2.0 mL Centrifuge Tube Racks — 50-Position, PPC, Yellow, 5/Pack (240-3919-Y80)
These yellow polypropylene copolymer (PPC) centrifuge tube racks hold 50 individual 15 mL conical centrifuge tubes upright for organized batch specimen processing at the laboratory bench. Supplied non-sterile in a 5/Pack format, they are well-suited to clinical, research, and industrial labs that need reliable color-coded tube organization across multiple workstations. The rigid, lightweight PPC construction resists standard laboratory cleaning solutions and common aqueous reagents encountered in everyday tube-handling workflows.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 240-3919-Y80 |
| Tube Compatibility | 15 mL Conical Centrifuge Tubes |
| Number of Positions | 50 |
| Material | Polypropylene Copolymer (PPC) |
| Color | Yellow |
| Sterility | Non-Sterile |
| Pack Size | 5/Pack |
| BPA / Phthalate Free | Yes |
| Country of Origin | USA |
Applications
- Batch specimen processing — holds up to 50 tubes upright simultaneously for organized sample preparation and distribution
- Clinical chemistry and urinalysis — stable bench positioning during reagent addition, dilution, and mixing steps
- Hematology and microbiology — color-coded rack identification supports workflow segregation by specimen type or processing stage
- Molecular biology sample prep — organized tube staging before and after centrifugation runs
- Multi-station bench setups — the 5/Pack supply equips several workstations in a single order
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline | Excellent |
| Dilute acids | Excellent |
| Dilute bases | Excellent |
| Methanol / ethanol (<70%) | Good — short-term contact |
| Acetonitrile | Limited — avoid prolonged exposure |
| Ethyl acetate | Not recommended |
| Aromatic / chlorinated solvents | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen racks are manufactured from BPA-free, phthalate-free PPC resin under rigorous lot-level quality controls that ensure consistent 50-position well geometry, secure tube fit, and uniform yellow color across every pack. LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, with tiered pricing available for high-volume clinical, hospital, and institutional procurement.
Frequently Asked Questions
What tube size do these racks hold?
These racks are designed to hold 15 mL conical centrifuge tubes in an upright, stable position. They are not intended for use with 50 mL conical or microcentrifuge tubes, which require different well diameters.
Are these racks autoclavable?
The source data does not include an autoclave rating for these racks. Contact LabSupplies.com for clarification before subjecting them to steam sterilization cycles.
Why yellow? Can I get these in other colors?
Yellow is a recognized bench color-coding convention that makes it easy to distinguish racks by specimen type, workflow step, or laboratory section at a glance. Caplugs® Evergreen offers centrifuge tube racks in multiple colors — contact LabSupplies.com to inquire about available options.
How many racks come in a pack, and is bulk pricing available?
Each pack contains 5 racks, making it straightforward to stock several bench stations in a single order. LabSupplies.com offers tiered pricing for institutional, clinical, and grant-funded laboratories — reach out to the sales team for a volume quote.