3500 Series Recessed Mounted 4B+ Vertical Mailboxes

4B+ Vertical mailboxes are U.S.P.S. approved for replacement and/or retrofit installations. For new construction, see Salsbury Industries' Cluster Box Units and 4C Horizontal Mailboxes.

Manufactured by Salsbury Industries to USPS-STD-4B+ Specifications

Ideal for apartments, condominiums and commercial buildings

Made entirely of aluminum

Feature a durable powder coated finish available in aluminum, bronze and sandstone

Rough opening for recessed mounted vertical mailboxes is 1-1/2" less than the unit's width, 1-1/4" less than the unit's height and equal to the unit's depth

Fits into a rough opening and secured with mounting hardware (not included) through the back or side panels

Units include a fully integrated flanged collar which fits over the rough opening

Individual compartment size is 5-1/2" W x 16-1/4" H x 6-3/4" D

Doors and trim are striated to resist scratching

Doors include a 5 pin cylinder cam lock (with 2 keys)

Mailboxes are available with 3 to 7 compartments

Salsbury Industries is an ISO 9001:2015 certified company and has excelled in the field of manufacturing since 1936