Red Rubber Stoppers One Hole 13mm
Product Code : EL-L-11353
Quick Answer: The Red Rubber Stoppers One Hole 13mm are size 13 red rubber bungs with a single 5 mm hole, measuring 13 mm at the bottom, 16 mm at the top and 24 mm in length.
Last updated: October 2026
Key Features
- One hole of 5 mm diameter
- Bottom 13 mm, top 16 mm, length 24 mm
- Red rubber with Shore hardness of 46-55
- Bottom diameter moulded on the top face
- Suits a 50 ml conical flask or 18 mm diameter test tubes
Technical Specifications
| Specification | Value |
|---|---|
| Bung type | One hole |
| Hole diameter | 5 mm |
| Size | 13 |
| Bottom diameter | 13 mm |
| Top diameter | 16 mm |
| Length | 24 mm |
| Shore hardness | 46-55 |
About This Product
A size 13 rubber stopper with one hole, so glass can be passed through it into a 50 ml conical flask or a test tube of 18 mm diameter. Extreme care must be used when inserting glass into the hole. The rubber has a Shore hardness between 46 and 55. Export supply of the Red Rubber Stoppers One Hole 13mm can be arranged to laboratories and schools in Palestine, Turkey, Kuwait, Timor-Leste, Oman and Guinea-Bissau.
Frequently Asked Questions
Q1. What precaution applies when fitting glass into the hole?
Extreme care must be used when inserting glass into the holes in rubber stoppers.
Related: Labware, Clamp - Two Prong Cork Lined, Deflagrating Spoon (Combustion Spoon).
For a quotation on the Red Rubber Stoppers One Hole 13mm, contact School Equipments India.
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