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Screw cap

black polypropylene (Top Hat), PTFE/silicone, for use with 4 mL vial with 13-425 thread, pkg of 100 ea

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black polypropylene (Top Hat)




pkg of 100 ea


top hat cap (preassembled closure and septa designed to provide a positive physical lock to assure that components arrive intact.)


for use with 4 mL vial with 13-425 thread

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PTFE-silicone-PTFE screw cap may be used for capping samples contained in a micro-insert vial, to be loaded on to GC/MS for biochemical lipid determination, of fat mass in Caenorhabditis Elegans.
Screw cap may be used for capping water samples in amber glass vial comprising of a polytetrafluoroethylene silicon septum for the analysis of chlorinated volatile organic compounds in water samples using headspace-solid-phase microextraction with gas chromatography (HS-SPME-GC).

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