Glass Jugs KaptClean® for Semi-Volatiles are glass containers cleaned for semi-volatiles, pesticides, PCB's and metals. Certifications are completed at an independent laboratory. Containers are pre-cleaned based on OSWER (Office of Solid Waste and Emergency Response) directives from the EPA (Environmental Protection Agency). All pre-cleaned containers are supplied pre-assembled with caps attached. Please contact us for more information on the bottle/closure/cleaning service combination best suited to your application.