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, see No. 1395-45SS or 1395-45TS).
Specification
Product Number: 1395-45HTSC Qty./Pk: 10 / Pk Qty./Cs: 10 / Cs Cap Style: High temperature Cap Material: Polybutylene terephthalate Cap Color: Red Thread Finish: 45 Color: Red Sterile: No