Product Description
Stoppers that back out of a vial can compromise sterility, container closure and sample integrity. Snap-on stoppers lock into the blowback ridge of the vial neck, providing a tight, secure seal that stays in place during handling, crimping, shipping and long-term storage.
This listing is for Wheaton catalog number W224100-181: Rubber Stopper, Snap-On, 20 mm, Gray Chlorobutyl, Case of 1,000. Options include natural red rubber, gray chlorobutyl with siliconized versions, and ULTRA PURE gray bromobutyl, in 13 mm and 20 mm sizes with durometers from about 46 to 55. They are autoclavable, meet USP <381> / EP 3.2.1 standards for injectable applications and are supplied 1000 per case. LIGHT LABS supplies the complete DWK Life Sciences line, including Kimble, Wheaton and DURAN labware.
Key Features
- Snap-on design – Locks into the vial blowback ridge.
- Prevents back-out – Stopper stays seated.
- Material options – Red rubber, chlorobutyl or ULTRA PURE bromobutyl.
- Injectable-grade standard – Meets USP <381> / EP 3.2.1.
- Autoclavable – Can be sterilized before use.
Specifications
| Catalog Number | W224100-181 |
| Brand | Wheaton (DWK Life Sciences) |
| Description | Rubber Stopper, Snap-On, 20 mm, Gray Chlorobutyl |
| Sold As | Case of 1,000 |
| Style | Snap-on |
| Materials | Natural red rubber; gray chlorobutyl; gray bromobutyl |
| Standard | USP <381> / EP 3.2.1 |
| Autoclavable | Yes |
Available Options
- 224100-180 – Rubber Stopper, Snap-On, 20 mm, Natural Red Rubber, Case of 1,000
- W224100-081 – Rubber Stopper, Snap-On, 13 mm, Gray Chlorobutyl, Durometer 55, Case of 1,000
- W224100-082 – Rubber Stopper, Snap-On, 13 mm, Gray Chlorobutyl, Durometer 46, Case of 1,000
- W224100-400 – ULTRA PURE Stopper, Snap-On, Gray Bromobutyl, 13 mm, Durometer 47, Case of 1,000
- W224100-405 – ULTRA PURE Stopper, Snap-On, Gray Bromobutyl, 20 mm, Case of 1,000
Applications
- Serum vial sealing
- Parenteral and vaccine vials
- Diagnostic vials
- Laboratory sample storage
