Cluster Box Units

1570 Series (F) - Cluster Box Unit

USPS approved Cluster Box Unit for all centralized mail delivery in residential and industrial developments.

These durable, secure, convenient and attractive freestanding mail-delivery units are constructed of non-rusting aluminum and stainless steel.


Product Details:

  • All aluminum construction
  • Superior strength, corrosion resistance, and exceptional durability for indoor AND outdoor installations
  • USPS Approved CBU for centralized mail delivery - ideal for all residential and commercial developments

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Security Upgrade Kits-1575 CBU

Security Upgrade Kit for Auth-Florence 1575 Cluster Box Units.


Standard Features:

  • Improves lock strength and resistance to the most common methods of attack
  • Makes 1575 "E" Series CBUs USPS 4B+ Compliant
  • Kits are designed to harden both the Postal Arrow Lock and Master Gate Doors
  • Easy to install, takes only a few tools and a little time

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