Rubber Stopper Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-11465
Jlab Export is a leading Rubber Stopper Manufacturer,and suppliers in India
Rubber Stopper (code EL-CL-11465), size No. 4 and model JL 303/41.2, is a solid tapered bung of chemical-resistant rubber with a 21 mm top, a 15.0 mm bottom and a height of 22.0 mm. It falls in the middle of the run of solid stopper sizes in this section. It is made by JLab in Ambala, India, in quantity for school and college laboratories.
Specifications
| Parameter | Detail |
|---|---|
| Model No. | JL 303/41.2 |
| Size | No. 4 |
| Type | Solid, without hole |
| Material | Rubber, chemical resistant |
| Top diameter | 21 mm |
| Bottom diameter | 15.0 mm |
| Height | 22.0 mm |
| 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-11465 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Looking After Rubber Stoppers
Wash stoppers in warm water with a little detergent after each practical, then let them dry away from sunlight and heaters, both of which harden rubber over time. Keep them apart from oils and strong organic solvents, which can make rubber swell or turn sticky. Store each size in its own labelled box so the No. 4 is easy to pick out at the next set-up.
Related Items
- Rubber Stopper — No. 3, one size smaller and also without a hole.
- Rubber Stopper — No. 5, one size larger for wider mouths.
- Trough — polypropylene trough for draining washed stoppers.
Browse other rubber and glass items in Chemistry Lab, a section of Chemistry Lab Equipment.
Request a Quote
Request the stoppers by Add To Cart or via the contact page, quoting size No. 4, the number required and where they are to be delivered.
Last updated: 25 October 2026
