EC Lab Grade HDPE (high-density polyethylene) Wide Mouth Round containers are well-suited for field sampling and laboratory use with solids, semi-solids, powders, and viscous liquids. These HDPE containers provide an excellent moisture barrier, are translucent, and are impact resistant. QEC wide mouth rounds are available in a range of sizes, from 2oz to 128oz in natural translucent, and 4oz to 32oz sizes in light-safe amber. HDPE wide mouth containers assembled with polypropylene cap and polyethylene foam liner.