30mm Round Bottom Stopper, Gray, Pk 100

30mm Round Bottom Stopper, Gray, Pack of 100

Fits our 250mL and 500mL serum vials sold separately on this website. For serum vials that have a 15mm hole opening and 30mm outside rim-to-rim diameter.

Manufactured in the USA using Chlorobutyl rubber. Meets USP Class VI standards. Supplied NON-sterile in 100 piece ziploc bags. Customer is required to wash, rinse and autoclave / sterilize according to industry standards as required.