Wash bottles are silk screened with high-quality, chemical-resistant inks.

To prevent cross-contamination, each bottle has a color bar that corresponds to its colored closure for easy hazard and chemical identification. These leakproof bottles meet requirements of OSHA Hazard Communication Regulation 29 CFR 1910.1200(f)(4).

All bottles except sodium hypochlorite bottles are molded of translucent LDPE for chemical resistance and durability, and include a polypropylene closure. Sodium hypochlorite bottles are molded of white LDPE for light-protective barrier qualities between 280 and 450 nm. They include an HDPE closure.