The red Corning open top polybutylene terephthalate (PBT) high temperature caps have a GL45 thread and are designed to be used with piercible silicone septa (sold separately). They can be dry heat sterilized up to 180 degree celsius. Cap Style: High Temperature. Cap Material: PBT. Cap Color: Red. Thread Finish: 45 GL. Reusable. Not Sterile. Corning #: 1395-45HTSC.
Item Tag: Case of 10
PYREX PTFE Faced Silicone Septa for GL45 Open Top PBT Screw Cap
The PYREX silicone septa fit into open top PBT caps (No. 1395-45HTSC) with GL45 threads to allow for aseptic reagent delivery or culture sampling using a syringe and needle. They can be autoclaved at 121°C or dry heat sterilized at up to 180°C.