Savillex FEP lab bottles deliver unmatched chemical purity, optical clarity, and a wide temperature range for demanding applications. Manufactured using a unique stretch blow molding process, these high-performance bottles offer lower trace metal content, smoother surface finish, easier pouring, and superior sealing. The crystal-clear FEP material provides excellent visibility of bottle contents while maintaining the chemical resistance and purity required for critical lab work. The linerless FEP screw closures provide a secure, leak-free seal. Working temperature range is from -200 to 200°C (-328 to 392°F).