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

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  Restek

  RK23093

  18 mm Magnetic Screw-Thread Headspace Caps and Red PTFE/Silicone, 1.9 mm thick Septa, 1,000/pk

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