Polypropylene screw cap is made of high quality polypropylene, can be used to help pre-perforated septum puncture, with precise manufacturing tolerances.
Specification
Description: Natural PTFE/white silicone septa Bottle cap type: anti-theft cap Bottle cap color: green Thread: 18-400 Cover and pad diameter: 16.5mm Septum thickness: 1.5mm Matching sample bottle: S2187 sample bottle Packing: 1 pack (100 pcs)
Features
Cap Type: closed top; Assembled Caps and Septa are easy for using and minimize contamination from handling;