3700 Series Recessed 3-Parcel Locker Mailbox

Commercial-grade recessed 4C horizontal mailbox unit engineered for USPS delivery. Constructed from heavy-duty aluminum with stainless hardware, it integrates three parcel lockers and multiple tenant compartments for secure, centralized mail and package distribution.

---

Key Features:

• USPS Approved 4C Design: Complies with current USPS 4C requirements, including parcel locker ratio
• Durable Construction: Heavy-duty aluminum with stainless steel hardware and powder-coated finish for indoor/outdoor use
• Integrated Security: Pre-numbered doors with heavy-duty cam locks, dust/rain shields, and three keys each
• Recessed Mount Installation: Factory-installed trim for a clean, built-in look in single or double-column configurations
• Outgoing Mail Compartment: Weather flap and 11-3/4 in. W x 3/4 in. H mail slot for convenient collection

---

Specifications Table:

Specification	Details
Series	3700 Series 4C Horizontal Mailboxes
Mounting	Recessed mount
Loading	Front loading
Material	Heavy-duty aluminum; stainless steel hardware
Finish	Durable powder-coated finish (multiple colors available)
USPS Approval	Yes, meets 4C requirements including parcel locker ratio
Parcel Lockers	Three fully integrated parcel lockers (2 PL4.5 and 1 PL5) in maximum height unit
Mailbox Doors	Standard MB1 doors (12-3/4 in W x 3-1/4 in H); larger MB2/MB3/MB4 available for custom units
Locks	Heavy-duty cam locks with dust/rain shields; three keys per door
Outgoing Mail	Dedicated compartment labeled “Outgoing Mail” with weather flap and 11-3/4 in W x 3/4 in H slot
Configurations	Single column (one door wide) or double column (two doors wide)
Use	Indoor or outdoor
Height (inches)	56.75
Depth (inches)	17
Product family	Commercial Mailboxes for USPS Delivery
Product group	4C Recessed Mounted
Classification codes	Uniclass 2015: Pr_40_70_50; OmniClass: 23-19 15 11; MasterFormat 2014: 10 55 23; UniFormat II: E20

---

Frequently Asked Questions (FAQ):

Q: Is this unit USPS approved?
A: Yes. It is a 4C horizontal mailbox system that meets USPS regulations, including the required parcel locker ratio.

---

Q: What materials is it made from?
A: Heavy-duty aluminum with stainless steel hardware and a durable powder-coated finish.

---

Q: Can it be installed outdoors?
A: Yes. It is designed for indoor or outdoor recessed installations.

---

Q: How many parcel lockers are included?
A: Three fully integrated parcel lockers are included in the maximum-height configuration.

---

Q: Do doors include locks and keys?
A: Yes. Each pre-numbered door includes a heavy-duty cam lock with a dust/rain shield and three keys.

---

Streamlined Mail Management with Architectural Poise

This recessed mailbox system brings a crisp, architectural order to multifamily corridors and lobby walls. The satin powder-coated aluminum and rhythmic door grid create a refined, modern façade. Pair it with warm wood cladding or polished concrete to amplify contrast and elevate the entry experience. It’s a polished essential for luxury living where function meets sculptural clarity.

---

Upgrade your property’s mail room with this secure, USPS-approved recessed system and streamline package delivery today.