Globe Scientific
Flange Plug Caps, Black PE — 12, 13 & 16 mm Test Tube Closures, 1000/Case | Globe Scientific
Flange Plug Caps, Black PE — 12, 13 & 16 mm Test Tube Closures, 1000/Case | Globe Scientific
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Flange Plug Caps, Black Polyethylene — 12, 13 & 16 mm, 1000 per Case
The Globe Scientific Flange Plug Caps deliver a reliable push-fit seal for round-bottom and flat-bottom test tubes across three common rim diameters. Engineered for routine sample storage, specimen handling, and culture tube closure, these black polyethylene plugs insert quickly and resist accidental pop-off during transport and benchtop work.
Technical Specifications
| Product Type | Flange Plug Cap (push-in closure) |
| Volume/Size | 12 mm, 13 mm, 16 mm tube diameters |
| Material | Polyethylene (PE) |
| Closure/Cap | Flange plug, friction-fit, black |
| Sterility | Non-sterile |
| Pack Size | 1000 caps per case |
Available Sizes
| 12 mm | 118127K | $36.70 |
| 13 mm | 118240K | $37.00 |
| 16 mm | 116152K | $51.20 |
Applications
- Sealing specimen and sample test tubes for short-term storage
- Closing culture tubes after inoculation or media dispensing
- Capping blood and serum collection tubes for transport
- Securing reagent and standard aliquots on the bench
- Reducing evaporation in incubation and refrigerated holding
- Color-coded sample identification using black plugs
Quality & Procurement
labsupplies.com is an authorized Globe Scientific dealer shipping from US inventory. Each case carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact us for volume quotes on standing orders.
Frequently Asked Questions
Which tube diameter should I order?
Match the cap to the outer rim diameter of your tube: 12 mm, 13 mm, or 16 mm. The flange seats against the rim while the plug body grips the inner wall, so accurate sizing ensures a secure fit.
Are these flange plug caps sterile?
No. These caps ship non-sterile. For sterile workflows, autoclave compatibility depends on your protocol; polyethylene has a limited heat tolerance, so verify before sterilizing.
How many caps come in each pack?
Each item is sold per case of 1000 caps. Pricing shown is per pack, and tiered pricing applies to multi-case institutional orders.
Will these caps reseal after removal?
Yes. The friction-fit flange plug design allows repeated insertion and removal for routine bench access, though seal integrity is best on undamaged plugs.
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