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8 mm TruSeal (100/pk)
Brand: Chromatography Research Supplies Inc8 mm TruSeal (TM), high quality silicone faxed on one side with a layer of pure PTFE. This seal reduce permeability and lower bleed than natural rubber, yet only cost slightly more per seal. Fits 8-425 thread caps.Packaged: 4 in. x 6 in. plastic bag; Weight: 9.5 g.
