If the top and bottom lids on your Avantco ADC-4 or ADC-GEL-4 series cabinet become cracked or damaged, replace them promptly with this Avantco 360LIDADC4N sliding glass lid kit! This kit includes a top and bottom lid. The glass lids on your unit lock in cold air and allow your freezer to run at maximum efficiency while providing a clear view of contents, so it's important to be sure that the lids close snugly and replace them if this is an issue. Broken glass on a lid is also a safety hazard for you and your customers. You'll be able to conveniently slide the lid thanks to the easy-to-grip handle.