3500 Series 4B+ Vertical Mailbox, 7 Doors, Recessed Mounted, Aluminum, USPS Access

3500 series 4b+ vertical mailbox, 7 doors, recessed mounted, aluminum, usps access features vertical mailboxes are u.s.p.s. approvedonly for replacement and/or retrofit installations manufactured by 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, brass, bronze, sandstone and green 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 industries is an iso 9001: 2008 certified company