Replacement Oversized CBU Tenant Door with Lock (For Type 5 CBU Mailbox) from National Mailboxes. The CBU (Cluster Box Unit) Mailbox is USPS approved and meet or exceed USPS Security Standards. Our CBU Mailboxes are designed to reduce mail theft and vandalism with stronger tenant doors, minimal pry points, improved outgoing mail slot, and much more. These commercial mailboxes are made entirely of heavy duty extruded aluminum with stainless steel hinges which means they won’t ever rust.
Door Size: 6-1/2″H x 12-7/8″W
Weight: 2 lbs
- Includes Tenant Lock with 3 Keys
- Superior strength, corrosion resistance, and exceptional durability for indoor AND outdoor installations
- Door Identification: Custom number plates, or custom engraved number
Colors: Sandstone (Shown), Black, Dark Bronze, Postal Grey, Forest Green (Add 2 extra days lead time), and White (Add 2 extra days lead time)