Rubber Stopper Manufacturer,Supplier and Exporter in India
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Product Code : EL-CL-11699
Jlab Export is a leading Rubber Stopper Manufacturer,and suppliers in India
Rubber Stopper (code EL-CL-11699) is the Hole No. 4 size, model JL 131/40.2, with a 21 mm top, a 15.0 mm bottom and a height of 22.0 mm. It sits in the middle of the range for closing tubes and flasks. JLab builds it from chemical-resistant rubber in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model No. | JL 131/40.2 |
| Size | Hole No. 4 |
| Top diameter | 21 mm |
| Bottom diameter | 15.0 mm |
| Height | 22.0 mm |
| Material | Rubber, chemical resistant |
| Quality check | Each rubber stopper is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 50 units |
| Dispatch time | Usually 3–5 working days |
| Product code | EL-CL-11699 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Putting In and Taking Out the No. 4
Any opening between 15.0 mm and 21 mm wide will take it. Moisten the rubber lightly before pressing it home, and lift it out with a twist instead of levering against the rim, which can chip a glass neck.
Related Rubber Stoppers
- Rubber Stopper — solid No. 4 with matching taper, no hole.
- Rubber Stopper — two-hole No. 4 of matching size.
- Rubber Stopper — Hole No. 5, a size larger in this series.
Find more closures in Chemistry Lab, within the wider Chemistry Lab Equipment section.
Request a Quote
Choose Add To Cart, or reach us on the contact page with how many No. 4 stoppers you need and where they should be delivered.
Last updated: 25 October 2026
