Rubber Stopper for Erlenmeyer Flask 1 Hole
Product Code : JL-LEP-10274
The Rubber Stopper for Erlenmeyer Flask 1 Hole (SKU JL-LEP-10274) seals narrow-mouth 250 mL Erlenmeyer flasks. This 1-hole stopper for Erlenmeyer flask use is a tapered cylinder of premium grade SBR black rubber, 25 mm high with a 32 mm top and 26 mm bottom diameter, bored with one 5 mm hole for a delivery tube, thermometer or glass rod. Its hardness of 40 ± 5 Duro gives a firm seal, and dimensions are held to ±0.5 mm. JaincoLab supplies it as per DepEd guidelines.
Specifications
The stopper is specified by shape, material, size, holes and hardness: tapered SBR black rubber, 25 mm high, 32 mm top and 26 mm bottom diameter, one 5 mm hole, ±0.5 mm tolerance and 40 ± 5 Duro.
| Product | Rubber Stopper for Erlenmeyer Flask 1 Hole |
| SKU | JL-LEP-10274 |
| Shape | Cylindrical with a tapered bottom end |
| Material | Premium grade SBR black rubber compound |
| Height | 25 mm |
| Top diameter | 32 mm |
| Bottom diameter | 26 mm |
| Hole diameter | 5 mm |
| Number of holes | 1 (one) |
| Tolerance | ±0.5 mm on height, top and bottom diameter |
| Hardness | 40 ± 5 Duro |
| Specification reference | As per DepEd guidelines |
Applications of the 1-hole stopper for Erlenmeyer flask
The stopper is used when a conical flask needs a single outlet or probe. Typical uses are:
- Fitting a delivery tube to collect gas from a reaction flask
- Holding a thermometer in a flask
- Sealing a flask while leaving a vent
- Setting up simple fermentation or respiration activities
Scope of supply and ordering
The listing covers one-hole rubber stoppers for 250 mL Erlenmeyer flasks. Flasks and tubing are separate items.
Frequently asked questions
Which flask does this stopper fit?
Narrow-mouth 250 mL Erlenmeyer flasks.
How many holes does it have?
One 5 mm hole.
What are its dimensions?
25 mm high, 32 mm top diameter and 26 mm bottom diameter.
Related products
Related items:
- Rubber Stopper for Erlenmeyer Flask 2 Holes
- Flask Erlenmeyer Borosilicate Narrow Mouth
- Glass Tubing Long
- Cork Borer
See all Laboratory Equipment Products, or the JaincoLab chemistry lab equipment range.
Request a quote
To order the Rubber Stopper for Erlenmeyer Flask 1 Hole, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
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