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Heavy Duty Rural Mailbox

Model # 4850


FREE SHIPPING on all orders within the continental United States in December!

7.5" W x 9.5" H x 20.5" D
15 lbs

Salsbury Industries is officially licensed by the US Postal Service to manufacture Cluster Box Units (CBU’s). Cluster Mailboxes are ideal for centralized mail delivery.


More Information

Salsbury 4800 Series Heavy Duty Rural Mailboxes


  • Mailboxes are U.S.P.S. approved
  • Manufactured by Salsbury Industries to USPS-STD-7B specifications
  • Made entirely of aluminum
  • Constructed of a 1/8" thick extruded aluminum body with a 1/8" thick die cast aluminum front door and rear cover
  • The die cast door is attached to the body with a full-width stainless steel hinge allowing for smooth operation
  • Feature a durable powder coated finish available in black, bronze, sandstone and white
  • Include an adjustable red signal flag and a magnetic door catch
  • Mailboxes can be mounted on posts and in columns, masonry or walls
  • Salsbury Industries is an ISO 9001:2015 certified company and has excelled in the field of manufacturing since 1936


  • Bolt mounted or in-ground mounted standard posts
  • Spreaders to mount multiple mailboxes to standard posts
  • In-ground mounted deluxe posts for single or multiple mailboxes
  • Custom vinyl numbers / letters
  • Replacement red signal flag



  • Rural Mailbox Video