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Screw Caps with Septa for 8-425 Screw Neck Vial

8-425 Screw Cap  are universal. Screwing the cap applies a mechanical force that squeezes the septum between the glass rim and the cap. Screw caps form an excellent seal and mechanically hold the septum in place during piercing. No tools are required for assembly. The Screw Caps that are inlcuded with this kit are knurled on the sides for excellent gripping and comfort when applyting to the vial.

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8-425 Screw Cap  are universal. Screwing the cap applies a mechanical force that squeezes the septum between the glass rim and the cap. Screw caps form an excellent seal and mechanically hold the septum in place during piercing. No tools are required for assembly. The Screw Caps that are inlcuded with this kit are knurled on the sides for excellent gripping and comfort when applyting to the vial.

High quality, pure silicone is laminated to PTFE to give a pure, highly inert septum with excellent resealing characteristics even after repeated punctures.PTFE/Silicone septa are the preferred product for use in most HPLC and GC applications where resealability and high purity are critical. Works well for applications where ease of needle penetration is important.

Features

1) 8mm screw vials can be used on all common autosampler

2) Standard narrow neck design for GC and HPLC

3) 8mm wider opening for easy puncture

4) 8mm PTFE/silicone septa, has excellent chemical inertness, acid and alkali resistance

5) 8mm screw black open top pp caps

Details

Suitable for: 8-425 Screw Vials
Caps Material: polypropylene
Septa Material: PTFE / Silicone
Septa Size: 8*1.5mm
Cap Features: 5.5mm Centre Hole or Closed Top
Color: Black, White or Customized

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