PYREX® Flasks, boiling, round bottom, narrow neck
- Complies with DIN ISO 1773
- Manufactured from PYREX® borosilicate glass which offers excellent resistance to chemical corrosion and thermal shock
- 20000 ml flask is supplementary to the ISO range
Products

| Catalog No | Capacity (mL) | Height (mm) | Bulb Diameter (mm) | Neck ID (mm) | Quantity | |
|---|---|---|---|---|---|---|
| 1100/02M | 50 | 105 | 50 | 18 | 10 | Find a distributor |
| 1100/04M | 100 | 115 | 65 | 18 | 10 | Find a distributor |
| 1100/12D | 250 | 144 | 85 | 30 | 10 | Find a distributor |
| 1100/18D | 500 | 175 | 105 | 30 | 10 | Find a distributor |
| 1100/24D | 1000 | 200 | 131 | 36 | 10 | Find a distributor |
| 1100/28D | 2000 | 260 | 166 | 45 | 10 | Find a distributor |
| 1100/32D | 4000 | 315 | 207 | 45 | 1 | Find a distributor |
| 1100/35D | 6000 | 355 | 236 | 57 | 1 | Find a distributor |
| 1100/36D | 10000 | 420 | 279 | 57 | 1 | Find a distributor |
| 1100/38D | 20000 | 515 | 345 | 67 | 1 | Find a distributor |
Specifications
Product specifications are found on the product detail pages. Click on the product catalog number in the table above to view the individual product specifications.
Product Overview
Although described as boiling flasks, these iconic round bottom flasks can be used for a multitude of laboratory applications.
Products
Products

| Catalog No | Capacity (mL) | Height (mm) | Bulb Diameter (mm) | Neck ID (mm) | Quantity | |
|---|---|---|---|---|---|---|
| 1100/02M | 50 | 105 | 50 | 18 | 10 | Find a distributor |
| 1100/04M | 100 | 115 | 65 | 18 | 10 | Find a distributor |
| 1100/12D | 250 | 144 | 85 | 30 | 10 | Find a distributor |
| 1100/18D | 500 | 175 | 105 | 30 | 10 | Find a distributor |
| 1100/24D | 1000 | 200 | 131 | 36 | 10 | Find a distributor |
| 1100/28D | 2000 | 260 | 166 | 45 | 10 | Find a distributor |
| 1100/32D | 4000 | 315 | 207 | 45 | 1 | Find a distributor |
| 1100/35D | 6000 | 355 | 236 | 57 | 1 | Find a distributor |
| 1100/36D | 10000 | 420 | 279 | 57 | 1 | Find a distributor |
| 1100/38D | 20000 | 515 | 345 | 67 | 1 | Find a distributor |
Specification
Specifications
Product specifications are found on the product detail pages. Click on the product catalog number in the table above to view the individual product specifications.
Product Overview
Product Overview
Although described as boiling flasks, these iconic round bottom flasks can be used for a multitude of laboratory applications.
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