Cluster Box Units (CBU) High Security - USPS Approved

High-quality CBU Commercial Mailboxes (NEW F-Series Type)

Introducing the New High Security “F” Series Cluster Box Units by National Mailboxes, designed to meet or exceed the new USPS Security Standards. These high security tamper resistant USPS Approved cluster box units-(CBUs) are made entirely of heavy duty extruded aluminum along with all stainless steel components and hinges. These high quality cluster mailboxes are front loading style and include all tenant door locks and keys. Parcel locker compartments for packages, outgoing mail compartments for outgoing mail and pedestal stands are also included. All CBU mailboxes are offered and available in a wide selection of protective and durable powder coated finish colors including- sandstone, postal grey, dark bronze, black, white and forest green. Optional private master locks for private use or private access delivery are also available upon request. Learn More

USPS Approved       

Product Features:

  • USPS Approved (Postal Certified)
  • Front Loading Style
  • Pedestal Included
  • Tenant Locks and Keys Included (Comes with 3 Keys per Lock or per Door)
  • Self-Adhesive Aluminum Number Plates for Door ID Included
  • New F-Series High Security Type
  • Parcel Locker Compartments for Packages & Outgoing Mail Compartments Included
  • Heavy Duty Aluminum and Stainless Steel Construction
  • Weather Resistant, Corrosion Resistant, and Rust Proof
  • FREE Shipping/Freight (Via Truck) Promotional-This Month

CBU Mailbox Installation Instructions Manual
CBU Mailboxes Product Line Information

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