Manufactured from special formulated polypropylene with thick walls and crush-resistant corners. High transparency and chemical heat tolerance. Impact resistant and autoclavable at 121°C, Caps should not be closed during autoclaving Angled neck form allows unrestricted liquid flow out without leaving any residue at bottle neck. Large GL45 bottle neck provide easy filling and pouring Cap with large ridges helps with increased grip featured with self lock and internal security ring. Embossed volume graduations on wall side offers better liquid level viewing and reproducible filling of the bottle without the need of a measuring cylinder. Clear bottles are manufactured from very clear polypropylene resulting with high transparency and for better view of the bottle content. Sterile bottles are manufactured at aseptically sterile production halls and then send to gamma sterilization.