Tuf-Bond Ptfe/Silicone Discs, Discs That Combine The Inertness Of Ptfe With The Resealability Of Silicone, Pack Of 72

Details:

Structurally bonded PTFE to silicone; no cement to leak out of your sample after needle penetration Reseals instantly, puncture after punctureAutoclavable Compresses to maintain a tight seal forcing the PTFE to conform to the sealing surface Standard syringe and GC needles penetrate the entire disc with ease