Rubber Stopper
Product Code : JA-CE-8484
The Rubber Stopper listing (SKU JA-CE-8484) covers tapered rubber stoppers bored with a single hole, in four sizes from about 17.5 mm to 26.5 mm across the top. The hole takes a glass delivery tube, thermometer or pipette, so the stopper both seals the vessel and carries the fitting. These one-hole rubber stoppers are kept in several sizes by school and college laboratories for gas-collection, distillation and heating set-ups, and JaincoLab supplies them in assorted quantities.
Specifications
Each stopper has one hole and is listed by bottom diameter x top diameter x length: size 1 is 15 x 18 x 24 mm, size 2 is 12 x 17.5 x 25.7 mm, size 3 is 21.3 x 25.5 x 24.7 mm and size 4 is 21 x 26.5 x 27.5 mm; the hole diameter and rubber grade are confirmed on the quotation.
| Product | Rubber Stopper |
| SKU | JA-CE-8484 |
| Type | One-hole rubber stopper |
| Size 1 (bottom x top x length) | 15 x 18 x 24 mm |
| Size 2 | 12 x 17.5 x 25.7 mm |
| Size 3 | 21.3 x 25.5 x 24.7 mm |
| Size 4 | 21 x 26.5 x 27.5 mm |
Uses of one-hole rubber stoppers
A one-hole stopper closes a flask or test tube while letting a single fitting pass through it, so it is used to lead gas out through a delivery tube, hold a thermometer in a distillation flask, or support a dropper or pipette in a reagent bottle.
- Delivery-tube assemblies for collecting gases in school practicals
- Holding thermometers in boiling-point and distillation set-ups
- Fitting droppers and pipettes into reagent bottles
- Sealing test tubes and flasks that need one outlet
Scope of supply and ordering
The listing covers one-hole rubber stoppers in the sizes selected. Glass tubing, thermometers and other stopper types are separate items, and quantities per size are confirmed on the quotation.
MOQ, lead time and packing are confirmed on each quotation according to the sizes, quantities and delivery destination. Stoppers are supplied to schools, colleges and laboratories and with kits for education projects, including export orders to Africa, the Middle East and South and South-East Asia.
Frequently asked questions
Which sizes are available?
Four sizes, from 12 x 17.5 x 25.7 mm to 21 x 26.5 x 27.5 mm (bottom x top x length).
How many holes does it have?
One hole.
What is the hole diameter?
The hole size is not stated in the product data; send the outside diameter of your tube or thermometer and it is confirmed on the quotation.
Related products
Stoppers and bench consumables are listed under Chemistry Equipment; browse all chemistry lab equipment for more.
Request a quote
To order Rubber Stoppers, send the sizes, quantities and delivery destination through the JaincoLab contact page or email [email protected]. For tender or project supply, see our tenders page.
