114 Southgate Drive, Oxford, NC 27565, US

(919) 482-3717

Postal Supply

Specializing in Centralized Mailbox Systems

Standard-4C Units

Product Overview

 The versatile™ 4C mailbox suites offer 12 different heights with over 140 pre-configured individual modules, plus the ability to configure any base module to fit your specific project needs. Suite heights provide greater flexibility in ensuring your mailbox installation remains compliant with necessary regulations. The Max Height Suite for instance, is designed to ensure a maximum number of USPS compliant tenant compartments are available within the allowed space; while the ADA Max Height Suite ensures a maximum number of compliant tenant compartments to completely meet both Fair Housing ADA installation requirements and Postal requirements. Florence makes installation of recessed mounted modules easy by providing a Multi-Unit Connector Kit (MUCK) for each specified module. This connector can be used to secure multiple units across a larger rough opening, eliminating the need for wall studs. It also ensures your installation has a clean look as units are pulled together tightly so they are mounted flush to one another, reducing any potential gaps between modules. 

Standard Features


  • Rugged, corrosion and weather resistant powdercoat finish resists scratching and vandalism
  • Constructed of heavy gauge aluminum and 300 series stainless steel components for superior strength, corrosion resistance and exceptional outdoor durability
  • Solid aluminum mail slot frame similar to High Security CBU design protects adjacent customer compartment and collection compartment
  • Unique double-locking parcel locking mechanism design for added mail package security
  • New USPS-1172 910A lock with three (3) keys