portURBAN 18-400 Phenolic Polycone Caps for Tight Leak-Proof Seal on Bottles with 18-400 Neck Size (pack of 50)
- Solid screw cap with plug seal, fit for standard GL 45 neck size media glass bottle, linerless.
- Cap Material: Polypropylene(PP), plug seal, autoclavable maximum temperature up to 140℃.
- Thermal performance, solvent resistance, able to be sterilized and autoclaved.
- Tight seal against the rim to prevent spills and evaporation,a barrier against moisture and gas.