Description
Restore USPS-Approved Access to Vertical Mailbox Units
The HK40100 Replacement Vertical Postal Master Access Door is designed specifically for Florence brand standard vertical mailboxes that require a USPS-authorized master access panel. This unit allows mail carriers to securely access tenant compartments for delivery, ensuring full compliance with USPS mailbox regulations in multi-tenant buildings such as apartment complexes, office buildings, and government facilities.
USPS Lock Installation Provided by the Postal Service
This replacement door does not come with a postal lock pre-installed; instead, USPS will furnish and install the authorized postal lock upon request after installation. This ensures compatibility and security for daily mail delivery in approved installations. If your existing door is damaged or missing, the HK40100 provides a fast, code-compliant solution that maintains the integrity of your mailbox system.
Made to Match Florence Standard Vertical Mailboxes
Constructed to meet Florence manufacturing specifications, this replacement master door is the correct fit for standard vertical mailbox systems and installs easily using existing hardware and mounting points. Its finish matches typical mailbox units and blends seamlessly into existing Florence configurations for a consistent look and secure performance.
Product Specifications
Product Name:
HK40100 Replacement Vertical Postal Master Access Door
Mailbox Compatibility:
Standard Vertical Mailboxes (Florence Brand)
Locking Mechanism:
USPS furnishes and installs the postal lock
Installation Notes:
This product includes the door only—postal lock must be installed by USPS
Product Features
Compatible with Florence brand standard vertical mailbox systems
USPS-compliant design for master postal access
Postal lock not included; USPS installs after door replacement
Ideal for replacing damaged or missing master doors
Maintains secure, centralized delivery access in multi-tenant settings



















