WHEATON® Polypropylene Open Top Screw Cap, 22-400, Case of 100

  • Open top caps provide access with a syringe
  • Polypropylene caps have a bonded PTFE faced silicone liner making them ideal for storage and retrieval of volatile solvents, sensitive compounds and corrosive chemicals
  • Liners consist of 0.055" (1.4 mm) of silicone and 0.005" (0.14 mm) of PTFE
  • Autoclavable
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