3700 Series Recessed 4C Mailbox with 2 Parcel Lockers

Heavy-duty recessed-mounted 4C horizontal mailbox designed for private access in multifamily and commercial buildings. Constructed from all-aluminum with stainless steel hardware, it includes two integrated parcel lockers, numbered tenant doors, and an outgoing mail slot with weather hood.

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Key Features:

• Durable Construction: All-aluminum body with stainless steel hardware and powder-coated finish for indoor/outdoor use
• Secure Access: Heavy-duty cam locks and master commercial lock for private access; anti-fish plate on outgoing slot
• Integrated Parcel Lockers: Two fully integrated lockers with master locks streamline package delivery
• Organized Mail Delivery: Individually numbered compartments with outgoing mail collection slot and hood
• Modular Design: Double-column, recessed mount with connector kit for linking multiple units

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Series	Salsbury 3700 Series 4C Horizontal Mailboxes
Mounting Type	Recessed mount (double column)
Access Type	Front-loading, Private Access (master commercial lock included)
Overall Dimensions	31.125 in W x 37.875 in H x 16.5 in D
Unit Height Category	10-door-high
Construction	Heavy-duty aluminum with stainless steel hardware
Finish Options	Powder-coated: aluminum, bronze, sandstone, black
Tenant Door Sizes	MB1: 3-1/4 in H x 12-3/4 in W; MB2: 6-3/4 in H x 12-3/4 in W; MB3: 10-1/4 in H x 12-3/4 in W; MB4: 13-3/4 in H x 12-3/4 in W
Parcel Locker Options	Integrated parcel lockers sizes include PL3, PL4, PL4.5, PL5, PL6 (unit pictured includes PL4 and PL4.5)
Outgoing Mail	11-3/4 in W x 3/4 in H slot with weather protection hood; anti-fish plate
Security	Heavy-duty cam locks; individually numbered compartments
Included Components	Factory-installed trim (1 in W x 1/4 in D), solid rear cover, 4C connector kit, master lock with 2 keys
Compliance	ADA height compliant configurations available; ISO 9001:2015 manufacturer
Use Case	Ideal for colleges, offices, private postal centers, military and government facilities

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Frequently Asked Questions (FAQ):

Q: Is this unit USPS-approved?
A: This configuration is for private access (not USPS-delivered); it includes a master commercial lock for building management.

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Q: Can it be used outdoors?
A: Yes. It is constructed of heavy-duty aluminum with a durable powder-coated finish suitable for indoor or outdoor use.

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Q: What are the overall dimensions?
A: Approximately 31.125 in W x 37.875 in H x 16.5 in D for the 10-door-high double-column model.

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Q: What finishes are available?
A: Standard finishes include aluminum, bronze, sandstone, and black.

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Q: Does it include keys?
A: Yes. Doors include heavy-duty cam locks with dust/rain shields and 3 keys; master commercial lock and keys are included.

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Streamlined Mail Management with Architectural Poise

This recessed 4C mailbox brings a clean, modern cadence to corridors and lobbies, dissolving clutter into a refined aluminum façade. The double-column layout with integrated parcel lockers feels tailored—orderly and intentional. Pair it with warm woods and matte black hardware to heighten contrast and sophistication. It’s a polished, indispensable amenity that elevates everyday living with effortless functionality.

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Upgrade your building’s mailroom with this secure, recessed 4C mailbox—built to last and ready for organized delivery day one.

Installation