The Delfield 3230010 concealed refrigerator door hinge is a reliable OEM replacement designed to restore smooth and consistent door operation in commercial refrigeration units. This hinge assembly features a concealed cartridge design with an extended pin, allowing the door to open and close securely while maintaining proper alignment. It works by supporting the door’s pivot movement, reducing strain on the frame and helping ensure a tight seal. Built for durability in demanding kitchen environments, it helps minimize wear and supports efficient temperature retention. Ideal for maintenance or repairs, it offers a practical solution to keep equipment functioning properly with minimal downtime. Fits Delfield: 402, 403, 406