Globe Scientific 12 mm Plug Caps, Polyethylene Push-In Closures — Clear, Orange, Lavender, 1000/Bag
The Globe Scientific 12 mm Plug Caps deliver a secure friction-fit seal for standard 12 mm laboratory tubes. Color coding streamlines sample organization across hematology batches, serum aliquoting, and general specimen storage, while the snap-in design supports rapid manual capping at the bench.
Technical Specifications
| Product Type | Push-In Plug Cap |
| Volume/Size | 12 mm inner diameter |
| Material | Polyethylene |
| Closure/Cap | Friction-fit plug (push-in) |
| Sterility | Non-sterile |
| Pack Size | 1000 caps per bag |
Available Colors
| Clear | 118139C | $39.20 |
| Orange | 118139N | $39.20 |
| Lavender | 118139L | $39.20 |
Applications
- Sealing 12 mm serum and plasma aliquot tubes for short-term storage
- Color-coding hematology samples by patient batch or test panel
- Closing culture and dilution tubes during specimen transport
- Organizing reference and control tubes within rack-based workflows
- Protecting decanted samples from evaporation and airborne contamination
- Distinguishing draw order or assay type across high-throughput racks
Quality & Procurement
Order from labsupplies.com, an authorized Globe Scientific dealer shipping from US inventory. Each bag carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes.
Frequently Asked Questions
What tube diameter do these plug caps fit?
These caps are designed for tubes with a 12 mm opening, providing a friction-fit seal. Verify your tube's inner or outer rim dimension, since fit depends on the specific tube wall thickness.
Are the caps sterile?
No. These plug caps are supplied non-sterile in bags of 1000. For applications requiring sterility, autoclave compatibility should be validated against your protocol before use.
Why are multiple colors offered?
Color coding helps labs visually separate samples by panel, patient batch, or draw order. Clear, orange, and lavender options reduce mix-ups in dense rack layouts and speed manual sorting.
Do all colors share the same price and pack size?
Yes. Clear, orange, and lavender are each priced at $39.20 per bag of 1000 caps. Mixed-color orders ship as separate SKUs and qualify for the same tiered volume pricing.