Screw Caps w/Septa for 4 mL Screw Thread Vials. National-NSC C4015-1A

National Scientific Company (Thermo Scientific)

MPN:
C4015-1A
Sales Unit:
PACK
Black Open Top Screw Cap (no septa)
$8.62
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Screw Caps w/Septa for 4 mL Screw Thread Vials. National-NSC C4015-1A
These polypropylene screw cap won¬πt contaminate sample when syringe needle is inserted, unlike phenolic caps that can flake. NC4015-5A SepCap has integral septa made of 0.010" polypropylene; therefore, septa do not need to be ordered. NC4015-30A, NC4015-40A, NC4015-75A, NC4015-45W are pre-assembled with septa. 13-425 thread finish.