"USPS Approved 4C Depot Mailboxes – This Florence 4C Mailbox Depot is pre-approved by the USPS for both indoor and outdoor centralized mail delivery. Custom sizes available – contact us for details.
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https://mailboxemporium.com/sh....op/4c16d-6p-d-4c-ver

"Heavy gauge aluminum construction with stainless steel components for superior strength, corrosion resistance and exceptional outdoor durability. A weather resistant powdercoat finish resists scratching and vandalism and is available in eight color choices.
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https://mailboxemporium.com/sh....op/4c16d-20-d-4c-ver

"Heavy gauge aluminum construction with stainless steel components for superior strength, corrosion resistance and exceptional outdoor durability. A weather resistant powdercoat finish resists scratching and vandalism and is available in eight color choices.
"
https://mailboxemporium.com/sh....op/versatile-4c16d-6

"Finish or Material
Heavy gauge aluminum construction with stainless steel components for superior strength, corrosion resistance and exceptional outdoor durability. A weather resistant powdercoat finish resists scratching and vandalism and is available in eight color choices."

https://mailboxemporium.com/sh....op/versatile-4c16s-3

Florence 4C mailboxes are USPS Approved and meet or exceed STD-4C requirements for new construction and major renovations. They are also ideal for private delivery applications. With numerous pre-configured 4C modules available, be sure to refer to USPS Approval guidance in product details below when selecting pre-configured 4C mailboxes for your project.

https://mailboxemporium.com/sh....op/versatile-4c16d-2