Rubber Conical Stopper... Manufacturer,Supplier and Exporter in India
Product Code : EL-CL-12705
Jlab Export is a leading Rubber Conical Stopper... Manufacturer,and suppliers in India
Rubber Conical Stopper... (code EL-CL-12705) is a red rubber stopper with a 20 mm top, a 15 mm base and one bored hole of 5 mm, model JLG556/089, so a glass tube can pass through a neck while the stopper closes it. The rubber is chemical resistant. JLab manufactures this one-hole size in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model | JLG556/089 |
| Diameter | 20 mm top (large end), 15 mm bottom (small end) |
| Number of holes | 1 |
| Hole diameter | 5 mm (5–6 mm) |
| Pattern | Plain |
| Material | Rubber |
| Colour | Red |
| Property | 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-12705 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Passing a Glass Tube Through the 20/15 mm Stopper
Wet the end of the glass tube with water, wrap a cloth round it, hold it close to the stopper and work it in with a twisting motion instead of pushing straight, so the glass does not snap. Once through, the rubber grips the tube. The stopper then closes any neck with a bore between 15 mm and 20 mm.
Related Conical Stoppers and Tubes
- Rubber Conical Stopper.. — the same 20/15 mm size without a hole.
- Rubber Conical Stopper — smaller 15/11 mm stopper, also with one 5 mm hole.
- Hollow Glass Tubes Ordinary — clear borosilicate glass tubes, heat and chemical resistant.
See every stopper size and more glassware in Chemistry Lab.
Request a Quote
Click Add To Cart or use the contact page; give the number of one-hole stoppers and the delivery town.
Last updated: 29 October 2026
