This bottle protects its content from UV rays and is ideal for light sensitive products. This general use bottle is perfect for liquids. It features a round body, rounded shoulders and narrow screw neck opening. This environmentally sensitive bottle helps to eliminate waste and help to ensure product integrity for long term storage. The attached black phenolic F217 & PTFE lined cap is known for providing the widest range of chemical compatibility and for being the most temperature tolerant of plastic closures. This foam backed liner resists attacks from virtually all chemicals at room temperature and provides resilience for a tight seal with a low moisture transmission rate. F217 has a low density foam core between two solid layers of LDPE. It can be used for analytical lab samples, high purity chemicals, strong acids solvents, environmental samples, pharmaceuticals, and diagnostic reagents.