20mm PharmaFix PTFE/Butyl Septa for Head Space Vials, 72/pk
- For use with 20mm crimp seal
- Thickness: 3mm
- Fits all crimp-top serum vials from 5ml to 100ml
- “Bellows” style sealing surfaces effect a more positive seal than other PTFE/Butyl septa
- Refer to part number 19457 for Preassembled septa with Aluminum Seal.
- Similar to: Supelco 27201
- Bulk quantities available. Contact us for a quote.