After October 6, 2006 USPS STD-4C Compliant Mail Systems are mandatory on all NEW CONSTRUCTION and MAJOR RENOVATIONS. Click here to see StopMailTheft versatile 4C Mailbox Suites
Standard Features:
Improves lock strength and resistance to the most common methods of attack
Makes Vertical Mailboxes 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
