33-430 C PHEN BLK, OPN, BUTL S, 1 Case

Black Open-Top Phenolic Screw Cap with Gray Chlorobutyl/50 Septa and Flange, 33-430 Size, Autoclavable (Case of 100)     
 
WHEATON? Black Phenolic, Open Top, Screw Cap
 
Open top caps with gray chlorobutyl / 50 septa are ideal for use with WHEATON? media bottles
Open top caps provide access with a syringe
Open top caps with pre-slit liner are ideal for use in automated liquid handling equipment