Corning Pyrex #4980-1L
- 1000 ml narrow mouth Erlenmeyer flask
- Rubber stopper included, single flask
- Borosilicate glass, round bottom
- 50 ml graduation interval
- 5.08 x 5.08 x 8.5 inches
- Heavy duty rim to reduce chipping
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large borosilicate conical flask with a reinforced rim, stoppered for mixing and storing larger volumes. The scale is approximate.
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ASIN: B07CQFB1S1Model: 4980-1L(Flask-RS)Category: Erlenmeyer Flasks
Overview
A technician mixing a liter of solution gets a narrow mouth Pyrex Erlenmeyer with its own rubber stopper in the same order. The rim is heavy duty, and the wall thickness is uniform.
The reinforced rim resists chipping and the even wall balances mechanical strength with thermal shock resistance. The listing describes a packed box that passes a drop test.
Who it's for
Teaching and general labs that handle large liquid volumes. Accurate measurement should use volumetric ware.
Pros and cons
- Heavy duty chip resistant rim
- Uniform wall thickness
- Rubber stopper included
- Graduations are coarse
- Stopper size not listed
- Large size to store
Performance notes
Uniform walls spread thermal stress, which helps borosilicate glass handle heating and cooling. The conical shape and narrow neck allow swirling without spilling, and the stopper closes it for storage.
Specifications
| Brand | Corning |
|---|---|
| Model | 4980-1L(Flask-RS) |
| Dimensions & fit | |
| Dimensions D x W x H | 5.08 x 5.08 x 8.5 inches |
| O.D. X Height(Mm) | 129 x 216 |
| Capacity & performance | |
| Capacity | 1000 ml |
| Construction & materials | |
| Material | Borosilicate glass |
| Included components | |
| Included | Rubber stopper |
| Other details | |
| Bottom shape | Round |
| Graduations | 50 ml |
| Graduations | 50ml, 250ml to 1000ml |
Frequently asked questions
How do I fit the stopper on the Corning 4980-1L flask?
The flask comes with a rubber stopper. The listing gives no stopper size or fitting steps.
How is the 4980-1L shipped?
It is packed in a heavy duty, double wall corrugated box capable of passing a 4 foot drop test.
Are the 4980-1L markings accurate?
The graduation interval is 50 ml, and the listing does not call them precise.