Rubber Stopper Manufacturer,Supplier and Exporter in India
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Product Code : EL-CL-11698
Jlab Export is a leading Rubber Stopper Manufacturer,and suppliers in India
Rubber Stopper (code EL-CL-11698) is the Hole No. 3 size, model JL 129/40.1, tapering from 19.0 mm at the top to 14.0 mm at the bottom and standing 21.0 mm high. The rubber resists the chemicals met in school and college work. It is made by JLab in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model No. | JL 129/40.1 |
| Size | Hole No. 3 |
| Top diameter | 19.0 mm |
| Bottom diameter | 14.0 mm |
| Height | 21.0 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-11698 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Seating the No. 3 Correctly
It closes mouths from 14.0 mm up to 19.0 mm inside width. Press it in with a slight twist rather than forcing it straight down, so the taper seats evenly, and stop once it grips; driving it deeper makes it hard to remove.
Other Sizes and Bore Types
- Rubber Stopper — No. 3 dimensions in a solid stopper without a hole.
- Rubber Stopper — No. 3 dimensions with two holes for tubes.
- Rubber Stopper — Hole No. 2, one size down for narrower mouths.
See Chemistry Lab for the rest of the series and Chemistry Lab Equipment for the glassware it closes.
Request a Quote
Add the stopper with Add To Cart, or use the contact page to give the quantity, size No. 3 and the delivery address.
Last updated: 25 October 2026
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