4B+ Horizontal Mailboxes
Designed for retrofits and replacement projects, our 4B+ Horizontal Mailboxes meet USPS regulations for specific installations in older buildings. Ideal for indoor use in multi-unit residential or commercial properties, these mailboxes offer secure, centralized mail delivery with a compact, wall-mounted design.
Sweatfully is an authorized dealer for all the brands we carry, so you can shop with confidence knowing you're getting genuine, high-quality products backed by full manufacturer warranties and expert support.
Salsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 14 B Doors (13 usable) - Sandstone - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 14 B Doors (13 usable) - Aluminum - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox - 20 A Doors (19 usable) - Sandstone - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 20 A Doors (19 usable) - Aluminum - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 20 A Doors (19 usable) - Bronze - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 14 B Doors (13 usable) - Aluminum - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 14 B Doors (13 usable) - Sandstone - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 14 B Doors (13 usable) - Bronze - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors - Aluminum - Rear Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, private...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors - Bronze - Rear Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, private...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors - Sandstone - Rear Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, private...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors - Aluminum - Rear Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofit...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors - Bronze - Rear Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofit...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors - Sandstone - Rear Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofit...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 18 A Doors (17 usable) - Sandstone - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 18 A Doors (17 usable) - Aluminum - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 18 A Doors (17 usable) - Bronze - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox - 18 A Doors (17 usable) - Sandstone - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 18 A Doors (17 usable) - Bronze - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 18 A Doors (17 usable) - Aluminum - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors - Bronze - Rear Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, private...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors - Sandstone - Rear Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, private...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors - Aluminum - Rear Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, private...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors - Sandstone - Rear Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofit...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors - Bronze - Rear Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofit...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors - Aluminum - Rear Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Rear Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofit...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 12 B Doors (11 usable) - Aluminum - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 12 B Doors (11 usable) - Sandstone - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 12 B Doors (11 usable) - Bronze - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox - 12 B Doors (11 usable) - Sandstone - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 12 B Doors (11 usable) - Aluminum - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 15 A Doors (14 usable) - Bronze - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 15 A Doors (14 usable) - Sandstone - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 15 A Doors (14 usable) - Aluminum - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors (14 usable) - Sandstone - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors (14 usable) - Aluminum - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 15 A Doors (14 usable) - Bronze - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 10 B Doors (9 usable) - Sandstone - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 10 B Doors (9 usable) - Aluminum - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox (Includes Master Commercial Lock) - 10 B Doors (9 usable) - Bronze - Front Loading - Private Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - Private Access4B+ horizontal mailboxes for Private AccessIdeal for colleges, schools, privat...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors (9 usable) - Aluminum - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors (9 usable) - Sandstone - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury 4B+ Horizontal Mailbox - 10 B Doors (9 usable) - Bronze - Front Loading - USPS Access
Salsbury Industries Mailboxes3600 Series 4B+ Horizontal Mailboxes - Front Loading - U.S.P.S. Access4B+ horizontal mailboxes are U.S.P.S. approved for replacement and/or retrofi...
View full detailsSalsbury Replacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - Gold
Salsbury Industries MailboxesReplacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - GoldUsually Ships Within 1-2 Days
Salsbury Replacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - Aluminum
Salsbury Industries MailboxesReplacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - AluminumUsually Ships Within 1-2 Days
Salsbury Replacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - Bronze
Salsbury Industries MailboxesReplacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - BronzeUsually Ships Within 1-2 Days
Salsbury Replacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - Sandstone
Salsbury Industries MailboxesReplacement Door and Lock - Standard B Size - for 4B+ Horizontal Mailbox - with (2) Keys - SandstoneUsually Ships Within 1-2 Days
Salsbury Replacement Door and Lock - Standard A Size - for 4B+ Horizontal Mailbox - with (2) Keys - Aluminum
Salsbury Industries MailboxesReplacement Door and Lock - Standard A Size - for 4B+ Horizontal Mailbox - with (2) Keys - AluminumUsually Ships Within 1-2 Days