Product Description
Choosing the right septum for an open top cap controls how well a vial reseals after each needle puncture and how the closure stands up to the sample. This range of replacement septa covers common cap sizes and facing materials for analytical and storage work.
This listing is for Wheaton catalog number W240596: Septa for Open Top Caps, Plain Septa, ETFE Faced Natural Red Rubber, 20 mm, Case of 100. Plain septa come in PTFE-faced silicone, PTFE-faced butadiene and PTFE- or ETFE-faced natural red rubber, plus a gray butyl locking flange septum for 33 mm caps. Sizes fit open top caps from 8 mm to 33 mm. The septa are autoclavable, so they can be sterilized before assembly, and they are packed 100 per case. LIGHT LABS ships genuine DWK Life Sciences products with knowledgeable support from our Englewood, Colorado team.
Key Features
- Many materials – PTFE/silicone, PTFE/butadiene, PTFE or ETFE/red rubber and butyl.
- Broad size range – Fits open top caps from 8 mm to 33 mm.
- Locking flange option – Interlock septum for 33 mm caps.
- Autoclavable – Sterilize before assembly.
Specifications
| Catalog Number | W240596 |
| Brand | Wheaton (DWK Life Sciences) |
| Description | Septa for Open Top Caps, Plain Septa, ETFE Faced Natural Red Rubber, 20 mm |
| Sold As | Case of 100 |
| Septa material | PTFE-faced silicone; PTFE-faced butadiene; PTFE- or ETFE-faced natural red rubber; gray butyl |
| For cap size | 8 mm to 33 mm |
| Autoclavable | Yes |
Available Options
- 240563 – Septa for Open Top Caps, Locking Flange Septa, 33 mm, Case of 100
- W240581A – Septa for Open Top Caps, Plain Septa, PTFE Faced Silicone, 8 mm, Case of 100
- W240583A – Septa for Open Top Caps, Plain Septa, PTFE Faced Silicone, 13 mm, Case of 100
- W240584A – Septa for Open Top Caps, Plain Septa, PTFE Faced Silicone, 15 mm, Case of 100
- W240585 – Septa for Open Top Caps, Plain Septa, PTFE Faced Silicone, 18 mm, Case of 100
- W240586A – Septa for Open Top Caps, Plain Septa, PTFE Faced Silicone, 20 mm, Case of 100
- W240587 – Septa for Open Top Caps, Plain Septa, PTFE Faced Silicone, 22 mm, Case of 100
- W240588B – Septa for Open Top Caps, Plain Septa, PTFE Faced White Silicone, 24 mm, Case of 100
- W240590 – Septa for Open Top Caps, Plain Septa, PTFE Faced Silicone, 33 mm, Case of 100
- W240593 – Septa for Open Top Caps, Plain Septa, PTFE Faced Butadiene, 13 mm, Case of 100
- W240594 – Septa for Open Top Caps, Plain Septa, PTFE Faced Natural Red Rubber, 15 mm, Case of 100
- W240598A – Septa for Open Top Caps, Plain Septa, PTFE Faced Semi-Translucent Silicone, 24 mm, Case of 100
Applications
- Autosampler vial caps
- Media bottle sampling ports
- Headspace and volatile samples
- Replacing worn septa
