Product Description
Add a grease-free standard taper connection to custom apparatus without compromising strength. These CLEAR-SEAL inner joints are formed from tubing with a heavier wall than standard tubing, giving glassblowers a robust starting point for building or repairing flasks, adapters and reaction setups.
This listing is for Wheaton catalog number 757769: CLEAR-SEAL Grease-Free Inner Joints, 19/22, Case of 6. The smooth, unground sealing surface closes without lubricant, reducing seizing and grease contamination. Joints are made from WHEATON 33 low extractable borosilicate glass meeting ASTM E438 Type I, Class A. Choose 19/22 or 24/40 sizes, each supplied six per case, to mate with matching outer joints. Order it from LIGHT LABS and keep your lab stocked with genuine DWK Life Sciences products.
Key Features
- Heavier wall tubing – Adds strength compared with standard wall joints.
- Grease-free sealing – Smooth surfaces seal without joint grease.
- Low extractable glass – WHEATON 33 borosilicate meets ASTM E438 Type I, Class A.
- Two sizes – 19/22 and 24/40 inner joints.
- Six per case – Ample supply for fabrication work.
Specifications
| Catalog Number | 757769 |
| Brand | Wheaton (DWK Life Sciences) |
| Description | CLEAR-SEAL Grease-Free Inner Joints, 19/22 |
| Sold As | Case of 6 |
| Glass Type | WHEATON 33 low extractable borosilicate |
| Glass Standard | ASTM E438 Type I, Class A |
| Joint Type | Inner (male), CLEAR-SEAL grease-free |
| Wall | Heavier than standard wall |
Available Options
Applications
- Custom glassware fabrication
- Glassware repair
- Building reaction apparatus
- Grease-free joint connections
