You've Got Questions ?

We know you may have some questions about the Postal Supply, our products, or services. Here is the the place you can come to find some answers.  As we begin to receive the same questions from our customers, we will add them to our list of frequently asked questions.  If you have a question and don't see the answer on the site, then contact us using either our contact form or email your question to us at [email protected] and we will try our best to get those questions answered. Check back often because we will be frequently adding more questions to this list.

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Postal Supply USPS-approved replacement parts

Postal Supply

Centralized Mailbox Systems

What is Centralized Mail Delivery?

Centralized mail delivery provides delivery and collection services to a number of residences from a centrally located installation - whether in a single-family subdivision or multifamily complex. Business customers also receive delivery services from a convenient central location. The ability for the USPS to make multiple deliveries per stop results in faster service for customers due to less time per delivery. Fewer stops also use less fuel and produce lower carbon emissions which contribute to lower costs and good environmental stewardship.

What mailbox equipment is used for Centralized Mail Delivery?

Centralized mail delivery equipment can be in the form of any "clustered" style of mailboxes including the free-standing, pedestal-mounted cluster box unit (CBU), or other STD-4C compliant cluster mailboxes mounted in or on a wall. All centralized mail delivery equipment being serviced by the USPS must be USPS Approved. Manufacturers seeking approval must submit the mailbox product to the USPS for rigorous testing and approval prior to offering it in the marketplace.

How Do I Know If I Need Centralized Mail Delivery?

The U.S. Postal Service will specify the mail delivery plan in new residential and commercial developments, so it is important to check with local Postal Authorities early in your project.

Where can I find the tenant keys and installation instructions for my new CBU?

You should find all the keys, mounting hardware, and instructions tucked carefully inside the mailbox cabinet. In order to access these, follow the below steps:

  1. Take the cluster mailbox module out of the box and set it on a workbench. 
  2. Open the outgoing mailbox door located below the outgoing mail slot on the right side.
  3. Push up on the latch on the left side of the inside of the outgoing mailbox compartment.
  4. The right side of the CBU cabinet will open and there will be a latch on the left side of the cabinet to open completely.  The keys, hardware, and instructions in the lower left-hand side compartment. 

What color options are available for CBU's and 4-C mailbox units?

We have several different color options for both Cluster Box Units as well as 4C Front Loading Mailbox Units. Click link below for a PDF showing available colors for each type of centralized mailbox unit.

Florence Corporation Color Options

Does my Centralized Mailbox Equipment come with a warranty?

Yes! Florence Corporation provides a 5 year warranty on all of their centralized mailbox equipment and accessory products, starting from the date you purchased from an authorized Florence dealer.

2019 Warranty Information