20mm Aluminum Vial Seals with Teflon...
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20mm Aluminum Vial Seals with White Teflon Septa, pack or 100 pieces
20mm PTFE Teflon® /Silicone Septa aluminum vial seals - for critical forensic analysis, trace elements analysis, internal standards and chromatography applications. 20mm aluminum seal with white 50 Durometer rating PTFE / Silicone septa septum, 4mm thickness.Open top face of exposed PTFE silicone septa is approximately 9.5mm; overall height of seal (aluminum seal height) is approximately 7mm.
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