The Adams Rite 3890-08-628 is a removable mullion for doors up to 8 feet, and is compatible with Adams Rite 8800 exit devices. It allows for the use of rim exit devices in the 8800 series on paired doors without narrowing the doors. It's favorable to vertical rod exit devices because it provides higher security and better traffic. The -628 model has a clear anodized finish.
