3600 Series Recessed Mounted 4B+ Horizontal Mailboxes-Front Loading-5 Door High Units

4B+ horizontal 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, commercial buildings and residential developments

Made entirely of aluminum

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

Available in "A" size doors (6-1/2" W x 5-1/4" H) and larger "B" size doors (13" W x 5-1/4" H)

Units with standard "A" size doors are available in 3, 4 or 5 doors wide and 5, 6 or 7 doors high

Units with larger "B" size doors are available in 2 doors wide and 5, 6 or 7 doors high

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

One mailbox opening is required for a master postal lock (installed by the U.S.P.S.) and cannot be used for mail distribution

Front loading door panel swings on a continuous hinge

Include factory installed 3/4" W x 1/4" D trim and a solid rear cover

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