These 14-door standard rear-loading Guardian mailbox systems are a secure and economical alternative to standard aluminum mailboxes. Each door is designed with a new bent cam that prevent the doors from being pried open. The high-security mailbox system features a durable housing is constructed of 24-gauge durable galvanneal steel.

The standard Guardian mail receptacle system is designed to be stacked two units high, mounted side by side, or between standard wall studs. All units have identical outside dimensions, allowing you to mix & match different door sizes. Lockable Guardian units are ideal for universities, military installations, and anyplace needing a private mail system.