Product Description
Replacing a lost stopper keeps volumetric flasks, cylinders and separatory funnels sealed and ready to use. These pennyhead glass stoppers have a flat head that is easy to grip and fit standard taper ground joints for a close, reliable seal.
This listing is for Kimble catalog number 41900R-13: Glass Pennyhead Stopper, 13, Case of 6. They are made from low-extractable 33 expansion borosilicate glass meeting USP Type I and ASTM E438, Type I, Class A, and are designed from ASTM E675. The ground zone is 14 mm long. Size 13 is solid and size 38 is hollow. Stoppers are packed six per case. LIGHT LABS ships genuine DWK Life Sciences products with knowledgeable support from our Englewood, Colorado team.
Key Features
- Pennyhead design – Flat head is easy to grip and turn.
- Standard taper fit – Ground to fit matching joints.
- Low-extractable glass – USP Type I and ASTM E438, Type I, Class A.
- Solid or hollow – Size 13 solid, size 38 hollow.
Specifications
| Catalog Number | 41900R-13 |
| Brand | Kimble (DWK Life Sciences) |
| Description | Glass Pennyhead Stopper, 13 |
| Sold As | Case of 6 |
| Material | Borosilicate glass, 33 expansion |
| Standards | USP Type I; ASTM E438, Type I, Class A; ASTM E675 |
| Style | Pennyhead |
| Ground zone length | 14 mm |
Available Options
Applications
- Volumetric flasks
- Graduated cylinders
- Separatory funnels
- Replacing lost stoppers
