Product Description
Freeze-drying goes more smoothly when the stopper lets vapor escape during the cycle and then seals cleanly. These two-leg lyophilization stoppers rest partly inserted in the vial neck, venting during drying, and are pressed home to close the vial afterward.
This listing is for Wheaton catalog number W224100-193: Rubber Stopper, 2-Leg Lyophilization, 20 mm, Durometer: 46, Case of 1,000. They are designed for injection vials with a blowback feature in the neck and are made in gray chlorobutyl and chlorobutyl-isoprene blends, with some sizes siliconized. Sizes include 13, 20 and 28 mm, with durometers of 46 or 50. Components are manufactured for dimensional stability and can be autoclaved. Order it from LIGHT LABS and keep your lab stocked with genuine DWK Life Sciences products.
Key Features
- Two-leg design – Vents vapor during lyophilization, then seals.
- Blowback vial fit – Intended for injection vials with a blowback neck.
- Dimensional stability – Consistent fit from stopper to stopper.
- Autoclavable – Can be steam sterilized before use.
- Several sizes – 13, 20 and 28 mm options.
Specifications
| Catalog Number | W224100-193 |
| Brand | Wheaton (DWK Life Sciences) |
| Description | Rubber Stopper, 2-Leg Lyophilization, 20 mm, Durometer: 46 |
| Sold As | Case of 1,000 |
| Material | Gray chlorobutyl or chlorobutyl-isoprene blend |
| Style | Two-leg lyophilization |
| Durometer | 46 or 50, by size |
| Autoclavable | Yes |
| Compatibility | Injection vials with blowback neck |
Available Options
- W224100-093 – Rubber Stopper, 2-Leg Lyophilization, 13 mm, Durometer: 50, Case of 1,000
- W224100-282 – Rubber Stopper, 2-Leg Lyophilization, 28 mm, Durometer: 46, Case of 1,000
Applications
- Lyophilization of pharmaceuticals and biologics
- Freeze-dried diagnostic reagents
- Injection vial closure
- Parenteral packaging development
