If the bottom lid on your Avantco ADC-4 or ADC-GEL-4 series cabinet becomes cracked or damaged, replace it promptly with this Avantco 36081718 sliding glass 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.