Product Description
Magnetized autosampler arms need a cap that the magnet can grip reliably on every vial. These 18 mm magnetic screw caps provide a flat, consistent surface for pickup while sealing headspace vials tightly for high-temperature equilibration throughout long sequences of samples.
This listing is for Kimble catalog number 73885-18: Magnetic Screw Thread Headspace Vial Caps, red PTFE/gray butyl rubber press fit, Case of 1,000. Caps are silver magnetic metal with an 18 mm screw thread and a press-fit septum. Choose red PTFE/white silicone (0.075 inch) or red PTFE/gray butyl rubber (0.060 inch) septa. The thinner septa keep the surface flat for the magnet. Caps pair with 18 mm screw thread headspace vials and are packed 1000 per case. LIGHT LABS ships genuine DWK Life Sciences products with knowledgeable support from our Englewood, Colorado team.
Key Features
- Magnetic cap – Compatible with magnetized autosampler arms.
- 18 mm screw thread – Superior sealing for headspace work.
- Press-fit septum – Pre-installed for quick use.
- Two septum options – PTFE/silicone or PTFE/butyl.
- Flat surface – Thin septa ensure consistent magnet pickup.
Specifications
| Catalog Number | 73885-18 |
| Brand | Kimble (DWK Life Sciences) |
| Description | Magnetic Screw Thread Headspace Vial Caps, red PTFE/gray butyl rubber press fit |
| Sold As | Case of 1,000 |
| Cap | 18 mm magnetic screw thread, silver |
| Septum | Red PTFE/white silicone 0.075 in; red PTFE/gray butyl 0.060 in |
| Septum fit | Press fit |
Available Options
Applications
- Headspace GC analysis
- Residual solvent testing
- Volatile organic analysis
- Automated sample handling
