Keep the contents of your food containers fresh and safe from contaminants with this blue, square 12-, 18-, and 22-Qt. food storage container cover. Designed to fit Thunder Group 12-, 18-, and 22-Qt. square polycarbonate and polypropylene food containers, the plastic food storage container lid is scratch resistant, durable, and non-slip textured to provide secure stacking. The tight-fitting polyethylene lid can withstand temperatures from -40ºF to 160ºF, and seals in moisture and freshness, keeping dirt, debris and contaminants at bay. Dishwasher safe, the lid resists food acids and oils, so is easy to keep clean. The heat-resistant food container cover measures 11-1/4” x 11-1/4” x 1/2", and is NSF listed.