LDPE bottles feature a unique vent system to keep hazardous volatile liquids in the bottle and off the lab bench.

Sodium hypochlorite (bleach) bottles are supplied with vented, white HDPE 38 mm closure; all other bottles supplied with vented polypropylene 38 mm colored closure. To prevent cross-contamination, each bottle has a color bar below the chemical name that corresponds to the colored closure.

Unitary design prevents contamination when filling the bottle. A strong, steady stream of liquid is dispensed when the bottle is squeezed.