Silicone vial stopper
These pharma grade solid silicone vial stoppers are sure to fill many needs due to its superior quality compared to regular butyl rubber stoppers. silicone is naturally resistant to humidity, and contamination via humidity or water damage. additionally when compared to butyl rubber, silicone gel stoppers are more chemical, acid, and temperature resistant than traditional butyl stoppers. non sterile standard stopper available sizes : 13 Mm, 20 Mm, 25 Mm, 32 Mm.