Our UN Approved 5 gallon (19 liters) White Plastic Buckets (HDPE), round (80-mil wall thickness), are certified at an independent testing facility to guarantee they meet packing group II and III for safety and high performance. Sold with our Child-Resistant Capable Life Latch Screw Top Lid. Built-in locking mechanism allows you to close lid simply and securely. Screw top lid features tamper-evident, child-resistant capable closing mechanism and a spout for easy pouring. Applications: Hazardous materials.