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1450 & 1550 Series Horizontal Mailboxes

Front Loading Horizontal 4B Mailboxes are designed for both USPS and private mail delivery. Security mailboxes feature an all-metal construction and a 5-pin cam lock per compartment. Contact our customer service department for more information on these durable commercial mailboxes.

Interested in USPS Approved 4C Mailboxes?

Browse our extensive selection of USPS Approved 4C Mailboxes, sure to fit your specific needs. Contact our reliable customer service staff at 1-800-229-4500 with any questions you may have or to inquire about custom orders.

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  1. Rear Loading 36-Door Horizontal Private Mailbox
    As low as $1,531.04
    N1004505
  2. Rear Loading 40-Door Horizontal Private Mailbox
    As low as $1,701.16
    N1004507
  3. Rear Loading 44-Door Horizontal Private Mailbox
    As low as $1,871.28
    N1004509
  4. Rear Loading 45-Door Horizontal Private Mailbox
    As low as $1,913.81
    N1004513
  5. Rear Loading 48-Door Horizontal Private Mailbox
    As low as $2,041.39
    N1004511
  6. Rear Loading 50-Door Horizontal Private Mailbox
    As low as $1,400.83
    N1004515
  7. Rear Loading 55-Door Horizontal Private Mailbox
    As low as $2,339.10
    N1004517
  8. Rear Loading 60-Door Horizontal Private Mailbox
    As low as $2,551.74
    N1004519
  9. Engraved Doors for 1400/1500, 1450/1550 & 4C Mailboxes
    N1023880
  10. Plexiglass Window for Horizontal Mailboxes
    N1020980
  11. Additional Keys per Lock
    N1023930
  12. Box of 100 Key Blanks for Horizontal Mailboxes
    N1023881
  13. Combination Lock for Horizontal Mailboxes
    N1023955
  14. Replacement Standard Lock for Horizontal Mailbox
    N1023956
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