Rubber Stopper Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-11468
Jlab Export is a leading Rubber Stopper Manufacturer,and suppliers in India
Rubber Stopper (code EL-CL-11468) is a solid size no. 7 stopper with no hole, tapering from 26.0 mm across the top to 20.0 mm at the base over a height of 27.5 mm. Its chemical-resistant rubber lets it close a flask or wide tube that holds a reagent solution. JLab makes it in Ambala, India, and can put it on the same order as the glassware it seals.
Specifications
| Parameter | Detail |
|---|---|
| Model no. | JL 308/41.5 |
| Stopper size | No. 7 |
| Type | Solid, without hole |
| Top diameter | 26.0 mm |
| Bottom diameter | 20.0 mm |
| Height | 27.5 mm |
| Material | Rubber, chemical resistant |
| Quality check | Each 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-11468 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Matching the No. 7 Stopper to a Neck
A tapered stopper seals any opening whose inside diameter lies between its two end diameters, so this one suits mouths from about 20 mm to 26 mm wide. Measure the neck before ordering: the stopper should enter part way and hold firm without being forced. Being solid, it is for closing, storing and shaking; a set-up needing a delivery tube or thermometer through the top calls for a holed stopper instead.
Other Stoppers and Glassware
- Rubber Stopper — one-hole stoppers for passing a tube or thermometer through.
- Rubber Stopper — solid no. 6, the next size down in this series.
- RB Flask — round-bottom borosilicate flask, commonly closed with a rubber stopper.
Stoppers, tubes and flasks for school practicals are grouped in Chemistry Lab, part of Chemistry Lab Equipment.
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Add the stopper with Add To Cart, or write through the contact page giving the size number, quantity and delivery location.
Last updated: 25 October 2026
