The Driplok Venting Washbottle doesnt dribble. It has a unique two-way valve that opens to release pressure when the bottle is not in use but closes to ensure a steady flow of solvent when it is required. The Driplok washbottles have wide necks for easy, trouble-free filling and precision moulded jets for optimum control in dispensing. Furthermore the new Azlon laboratory plastics catalogue features over 1000 product lines plus technical and maintenance advice on the care of plastic laboratory equipment.