18 mm Magnetic Screw-Thread Headspace Caps and Blue PTFE/Silicone, 1.5 mm thick Septa for SPME, 100/pk

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  18 mm Magnetic Screw-Thread Headspace Caps and Blue PTFE/Silicone, 1.5 mm thick Septa for SPME, 1,000/pk

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  Pending approval

  Restek

  RK23091

  18 mm Magnetic Screw-Thread Headspace Caps and Blue PTFE/Silicone, 1.5 mm thick Septa for SPME, 1,000/pk

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  18 mm Magnetic Screw-Thread Headspace Caps and Red PTFE/Silicone, 1.9 mm thick Septa, 100/pk

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  SPME Vial Cap, 18 mm, Screw Thread with MicroCenter PTFE/Silicone Septa, 100/pk

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