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USPS Approved Manufacturer
of CBUs, 4Cs, & Curbside Mailboxes
ISO 9001:2015 Certified
Quality Management System
Largest Selection
of Mailboxes & Postal Specialties
Secure & Hassle Free
Since 1987
The 15-door high-security 4C Standard Mailbox unit is constructed of heavy gauge aluminum with stainless steel components for maximum durability both indoors and out with a shelter. The corrosion resistant, weatherproof powdercoat finish protects the units from the elements, while the riveted shelves and concealed hinges limit pry points for extra security. The Mail Carrier Access Door provides easy access for Postal Letter Carriers to release the master loading doors. Includes 3 Large Parcel Lockers