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Select a Product Line below to view our available replacement part lists
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Search by ID Tags
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Search by identifying tags, serial numbers and/or Manufacturer names often located on the back or lower front corner of each unit. These tags may provide clues to the type of box which is installed. |
Search by Door Size
One way to determine your mailbox type is by the size of the compartment doors. The following images show the most common door layouts:
![]() Vertical Doors These taller doors are typically used in apartment building mailboxes, usually up to no more than 7 doors per mailbox cabinet. |
![]() Horizontal Doors These doors are more square or slightly rectangular, and are used in commercial or residential buildings. These doors can be in several row and column configurations. |
![]() CBU / 4C Doors These doors are much wider, and are typically used in newer cluster boxes or STD-4C mailbox units. These units are usually installed in residential neighborhoods, or in newer multi-tenant buildings. |
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Search by Installation Type
You can also identify your mailbox by the way it's installed. The following installation examples should help you identify your current mailbox.
![]() ![]() Wall Installation Several types of mailboxes are installed into an wall, or mounted directly on it. Some installations open from the back inside a mail room. These mailboxes can be used for USPS or private mail delivery. |
![]() ![]() Pedestal Installation Other mailboxes are installed free-standing on a pedestal. Older mailboxes (such as NDCBUs) have been replaced by CBUs (cluster box units) and pedestal-mount 4C mailboxes. |
Wall-mount products: » Vertical Mailboxes » USPS / Private Horizontal Mailboxes » In-wall 4C Mailboxes |
Pedestal-mount products: » Cluster Box Units |