Borosilicate serum vials with butyl rubber stoppers
5mL borosilicate Type I serum vials with butyl rubber stoppers and aluminum crimp seals. Cleanroom-filled and individually wrapped. Pack of 10.
For laboratory and research use only. Not for human or veterinary consumption. LabVial Pro does not provide medical, clinical, or therapeutic guidance.
"Butyl stoppers are excellent — no coring after 50+ punctures. Crimp seal holds perfectly."