Rubber Stoppers of Various Diameters Without Holes
Product Code : SCL-CL-11547
Rubber Stoppers of Various Diameters Without Holes (SKU SCL-CL-11547) are solid, round rubber bungs used to seal test tubes, small flasks and bottles so that contents do not spill, evaporate or pick up contamination. They serve chemistry and biology benches, from school practical rooms to college and testing laboratories. From Ambala, India, Science Lab Supplies can deliver them to schools, colleges, institutes, tender contractors and distributors as a supplied consumable.
Specifications
The table that follows covers each specification of the solid stoppers. In short, they are round stoppers of chemical-resistant rubber with no hole, so they close a vessel completely, and they come in four bottom diameters, 11 mm, 13 mm, 14 mm and 15 mm, for tubes, flasks and bottles.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11547 |
| Also known as | Solid rubber stoppers, rubber bungs |
| Material | Rubber |
| Chemical resistance | Chemical resistant |
| Shape | Round |
| Hole | None (solid) |
| Bottom diameters | 11 mm, 13 mm, 14 mm, 15 mm |
| Number of sizes | 4 |
| Use | Laboratory |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Rubber Stoppers Without Holes
Solid stoppers are used whenever a tube or flask must be closed tight: shaking a mixture, storing a prepared sample, keeping a gas inside a tube until it is tested, or sealing a culture. As consumables, they can be reordered in whatever size mix a lab needs for chemistry and biology practicals.
- Class 6–10 science: shaking solutions and suspensions in closed test tubes, such as a rimless 25 x 200 mm Test Piece.
- Class 11–12 chemistry: storing collected gases and prepared samples, for instance tubes filled using the Simple Equipment for Gases that do not Dissolve in Water.
- Biology practicals: closing tubes during germination, enzyme and fermentation experiments.
- College and testing labs: temporary sealing of small flasks and sample tubes, such as a graduated Conical Pot (Erlenmeyer) 50ml.
Standard Scope of Supply
These solid stoppers are supplied in the bottom diameters 11 mm, 13 mm, 14 mm and 15 mm. Specify the sizes and the quantity of each, and the quotation will confirm the mix and how they are packed. Tubes and flasks are ordered separately.
Packing, MOQ and Lead Time
Whether you need a few dozen for one class or a yearly restock for several labs, ask for a quotation; it will show packing, delivery time and price for your exact quantities. Holed stoppers, flasks and test tubes can be included on the same document.
Registered as an exporter with an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Peru, Egypt, Iraq, Nigeria, Kenya and Ghana. For a size-by-size price, message the team on the contact page or add the stoppers to the enquiry cart; tender quantities can be routed through the lab tender page.
Frequently Asked Questions
How do I choose the right stopper size?
Compare the inner diameter of the tube or flask mouth with the bottom diameters on offer: 11 mm, 13 mm, 14 mm and 15 mm. The stopper should enter part-way and seal firmly.
How are these different from holed stoppers?
These are solid and seal the vessel completely. Holed stoppers are bored to take a delivery tube or thermometer. Both versions come in 11, 13, 14 and 15 mm bottom diameters, so matching pairs can be ordered for the same glassware.
Who supplies the Rubber Stoppers of Various Diameters Without Holes?
Science Lab Supplies, an Ambala, India supplier of laboratory consumables, quotes these solid stoppers to schools, colleges, dealers and tender contractors and can combine them with glassware on a single order.
Are they resistant to laboratory chemicals?
The rubber is chemical resistant and suited to routine aqueous reagents. For strong solvents or oxidising acids, check with us before use so the right closure can be confirmed on the quotation.
Related Stoppers, Tubes and Flasks
Solid stoppers go with the vessels they close and with holed stoppers for set-ups that need an outlet. The items below cover both kinds of closure, a stopper file, test tubes, three flask types and a rack for stoppered tubes, so glassware and closures can be matched on one quotation.
- Rubber Stoppers of Various Diameters with Holes — bored version in the same sizes for delivery tubes and thermometers.
- Stoppers — solid red rubber stoppers in sizes from 3 mm to 20 mm.
- Metal File for Rubber Stoppers — handle with six removable heads, 3 mm to 20 mm.
- Test Piece — rimless 18 x 180 mm glass test tube.
- Flat-Bottomed Flasks 100ml — 100 ml flat-bottomed glass flask with a long mouth.
- Round Bottom Jars (Spherical Balloons) 100ml — 100 ml round-bottom glass flask with a long mouth.
- Conical Pot (Erlenmeyer) 250ml — graduated 250 ml narrow-mouth conical flask.
- Case Holder — brown wooden stand with 12 holes for upright tubes.
Browse the full Chemistry Lab range, the Laboratory Flasks range, or all school lab equipment.
Last updated: 9 October 2026
