Product Description
An inexpensive septum that still protects sample integrity is a practical choice for routine vial work. These PTFE-faced rubber septa reseal well after puncture, resist coring and keep contents isolated from the rubber backing, making them a sensible everyday stock item for busy labs.
This listing is for Kimble catalog number N73834T-20: PTFE-Faced Red Butyl Septa, 20 or 20A. Each septum has a highly chemical-resistant PTFE face over a rubber backing. Sizes fit 15-425, 18-400 and 24-400 open-top caps, and the N73834T-20 is a PTFE-faced butyl septum for 20 mm and 20A aluminum seal finishes. Septa come in packs of 100 or 144. Add it to your LIGHT LABS order alongside the rest of your glassware and closures.
Key Features
- PTFE facing – Highly chemical resistant, protects sample integrity.
- Excellent resealability – Seals after needle puncture.
- Resists coring – Reduces rubber fragments in samples.
- Low cost – Economical for routine use.
- Aluminum seal option – 20 mm and 20A size for crimp finishes.
Specifications
| Catalog Number | N73834T-20 |
| Brand | Kimble (DWK Life Sciences) |
| Description | PTFE-Faced Red Butyl Septa, 20 or 20A |
| Sold As | Each |
| Facing | PTFE |
| Backing | Red rubber; butyl (N73834T-20) |
| Fits | 15-425; 18-400; 24-400; 20 mm or 20A aluminum seal |
Available Options
- 73816-15 – PTFE-Faced Red Rubber Septa, 15-425, Case of 144
- 73816-18 – PTFE-Faced Red Rubber Septa, 18-400, Case of 144
- 73816-24 – PTFE-Faced Red Rubber Septa, 24-400, Case of 144
Applications
- Open-top screw cap vials
- Crimp seal vials
- Headspace sampling
- Sample storage
