Keep the contents of your food containers fresh and safe from contaminants with this 12-, 18-, and 22-Qt. white food storage container cover. Designed to fit Thunder Group 12-, 18-, and 22-Qt. white round food containers, the polypropylene round food container lid is flexible, durable and can withstand temperatures from -40ºF up to 160°F. The BPA-free lid fits tightly on matching containers, sealing in moisture and freshness, and keeping dirt, debris and contaminants at bay. Dishwasher safe, the lid is stain and chemical resistant, and is easy to keep clean. The food container cover measures 12-2/5” in diameter, and is NSF certified.