Bi-Metal Magnetic Crimp-Top Caps with PTFE/Silicone Septa, 20 mm w/8 mm Hole, Blue/Silver, Preassembled, 100-pk. 
Features & Benefits
- Micro-thin septum center pierces easily without bending needles or breaking SPME fibers.
- Thicker outer septum wall secures septum in place and ensures a tight seal.
- Versatile closures are suitable for SPME as well as dynamic and static headspace applications.
- Septa are manufactured from low-extractability silicone and molded for dimensional conformity.
- Available in magnetic 18 mm screw caps and 20 mm crimp caps.
| Weight | 0.50 lbs |
|---|---|
| Dimensions | 6.50 × 6 × 1 in |
| Material | Steel |
