1,000 20mm Serum Vial Stoppers – Round Bottom Bromobutyl
20mm Serum Vial Stoppers – Bag of 1000: $55.00 20mm Round Bottom Stoppers – Bag of 1,000 pieces – for Serum Vials SERUM VIAL STOPPERS Gray bromobutyl serum vial stoppers. Manufactured in accordance with specifications found in ISO 8362-2 20mm vial stoppers are for serum vials with a 13mm hole opening and 20mm outside rim-to-rim outer diameter (13x20mm). Provided as a single bag of 1,000 pieces with lot traceability labels. Require final washing and sterilization by the end user. Please inquire about pre-washed stoppers, West FLIP OFF seals or serum vials.