Wash bottles with Wide mouth makes filling easier. Non-metallic vent that stops the risk of solvent leakage With the exception of the bottle designed for sodium hypochlorite, which is a white LDPE bottle for light protection and contains a HDPE closure, the bottles are made of LDPE, with a PP closure. The closure and stem are molded in one piece to create them leak-proof. The angled neck and tip provide a standardized stream of liquid and therefore the tip is in the reduction of if required to extend the flow.