You may need to ship hazardous materials in Open Head UN Plastic Pails. At Bottle Solutions we carry a full line (3.5 to 6 gallon) of open head pails that meet UN specifications for shipping containers. All of our pails and covers are made from high density polyethylene (HDPE) and come in both natural and white colors. Other colors can be special ordered. The cover for a UN pail is what, along with the pail, allows for its certification to ship regulated materials. For your convenience we carry a variety of covers including plain, covers with 70MM caps, covers with Rieke Flex-Spouts, and we also have EZ Covers, which provide for easy sealing, opening and covering after opening. When selecting a pail and cover make sure to consider your application. Some of our containers are for Dry Product Only. Others will work for both dry and liquid product.