20mm Complete Tear Off Vial Seals, Red Stripe, Pk 100. Crimps on serum vials with a 13mm hole opening and 20mm rim to rim diameter. For use when the aluminum seal and stopper (sold separately) are to be completely removed to POUR out vial contents.
CTO20RS-100
20mm Complete Tear Off Vial Seals, Red Stripe, Pk 100