Salsbury 4C standard horizontal 3700 series mailboxes are ideal for colleges and schools, corporate mailrooms, government agencies and many other applications. Units include one or two (2) front loading master door(s) that swing(s) on a continuous hinge. A compartment equivalent to two (2) 3-1/4"e; high standard doors is used for outgoing mail collection. The compartment is labeled "e;Outgoing Mail"e; and includes a 10-3/4"e; H x 3/4"e; H mail slot and weather protection hood. The outgoing mail compartment includes the master commercial lock access door and cannot be used for mail distribution. Fully integrated or stand-alone parcel lockers offer tenants a convenient way to receive packages on site. Units include factory installed 3/4"e; W x 1/4"e; D trim and a solid rear cover. Custom engraved placards (related item #3767) are available as an option upon request.