Rubbermaid 6523 Color-Coded white food storage container lid. Created to fit compatible 12, 18 and 22 qt square containers, this polyethylene lid is designed to create a tight, leak-resistant seal that will make your commercial kitchen a safer environment. Your staff members will be able to consistently identify which food storage container to use when prepping and storing for busy breakfast, lunch, or dinner rushes. Use this lid with your white color-coded container to safely store dairy products. It can handle temperatures between -20 To 212°F, making it a versatile addition to your kitchen.