Made of chemically-resistant polypropylene, UN-Rated 20- and 30-gal Overpack Salvage Drums keep hazardous waste safely contained and facility in compliance with shipping regulations. Products are X-rated and suitable for Packing Groups I, II, and III hazardous materials. Designed and sized for shipping leaking cans, bottles, and 5-gal pails as well as lab packing applications, containers feature leak-proof, twist-on, notched lid and can be nested when empty.