Stopper Manufacturer,Supplier and Exporter in India
Product Code : EL-SLE-5697
Jlab Export is a leading Stopper Manufacturer,and suppliers in India
Stopper (code EL-SLE-5697) is an assortment of laboratory stoppers for closing test tubes, flasks and bottles and for fitting glass tubes into apparatus in school and college science labs. It covers rubber stoppers, supplied mixed, in solid, one-hole and two-hole forms, together with assorted cork stoppers. They are made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Rubber stoppers | Supplied mixed |
| Rubber stopper forms | Solid (no hole), one-hole and two-hole |
| Cork stoppers | Assorted (the original listing spells this line “Bork assorted”) |
| Quality check | Each stopper is visually inspected before dispatch |
| Pack quantity | Assortment; confirm the count per pack in your enquiry |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SLE-5697 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Stoppers?
| Model | Material and form | Sizes and packing listed |
|---|---|---|
| This assortment (EL-SLE-5697) | Rubber (solid, one-hole, two-hole) plus cork | Mixed; sizes not stated |
| Rubber Corks (without Holes) | Solid rubber | Three numbered sizes for test tubes, boiling tubes and flasks; packs of one hundred |
| Rubber Corks (with One Hole) | Rubber, one hole | Same three sizes; packs of one hundred |
| Rubber Corks (with Two Holes) | Rubber, two holes | Same three sizes; packs of one hundred |
| Cork | Natural dark cork, tapered | Four sizes |
Choose this assortment to stock a new or small lab with a spread of stopper types in one order. When you already know the exact sizes and quantities you use, the single-type rubber cork listings and the sized cork listing let you order precisely.
What Are Laboratory Stoppers Used For?
Solid stoppers close test tubes, flasks and reagent bottles so contents do not spill or evaporate. A one-hole stopper carries a thermometer or a delivery tube, and a two-hole stopper takes a thistle funnel and a delivery tube together, the usual arrangement for gas-preparation practicals in school chemistry. Cork stoppers close bottles and wide tubes and can be bored with a cork borer when a hole of a particular size is needed.
To push a glass tube or thermometer through a stopper, wet the glass with water or glycerol, hold it close to the stopper with your hand protected by a cloth, and twist gently rather than pushing hard. Keep rubber stoppers away from organic solvents that make rubber swell, and store them out of direct sunlight.
Frequently Asked Questions
What does this stopper listing include?
Rubber stoppers supplied mixed — solid, one-hole and two-hole — and assorted cork stoppers. Tell JLab which types you want in the assortment.
Which sizes are supplied?
The listing does not state sizes. Send the glassware the stoppers must fit, such as test tubes, boiling tubes or flasks and their neck sizes, and JLab will confirm the assortment.
When do I need a one-hole or a two-hole stopper?
Use one hole for a thermometer or a single delivery tube. Use two holes when a thistle funnel and a delivery tube must pass through the same mouth, as in a gas-generating flask.
Who manufactures these stoppers?
JLab, the trading name of Jain Laboratory Instruments Pvt Ltd, makes them at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, an Indian manufacturer of school science lab equipment, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The stoppers are prepared at JLab’s own works and not bought in from a trader, so schools, colleges, dealers and importers order factory-direct, every piece is visually inspected before dispatch, and repeat orders are made by the same manufacturer. JLab exports worldwide and ships to buyers in every region — for example Uruguay in South America, Saudi Arabia in the Middle East, Croatia in Southern Europe, Eswatini in Southern Africa and El Salvador in Central America and the Caribbean. See the JLab lab tenders page for tender purchases.
Stoppers and Cork Tools
- Rubber Corks (with One Hole) — bored stoppers for a thermometer or single tube.
- Rubber Corks (with Two Holes) — for a thistle funnel and delivery tube.
- Rubber Corks (without Holes) — solid stoppers for closing tubes and flasks.
- Cork — tapered natural cork stoppers in set sizes.
- Cork Borer — plated brass borers for cutting holes in corks and rubber stoppers.
More items are in the School Lab Equipment range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart button on this page, or send the stopper types, the glassware they must fit, the quantity (minimum 10 units) and your delivery location through the contact page.
Last updated: 4 October 2026
