Salsbury Industries
Salsbury 3700 Horizontal Series Recessed-Mount Mailbox with 3 Parcel Lockers
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SKU 305819834
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Details
3700 Series Recessed 4C Mailbox, 3 Parcel Lockers
USPS-approved recessed 4C horizontal mailbox constructed from heavy-duty aluminum with stainless steel hardware. Designed for apartments and commercial buildings, this maximum-height double-column unit features 15 tenant doors plus three integrated parcel lockers and an outgoing mail compartment.
Key Features:
- USPS 4C Compliance: Approved front-loading unit with carrier access door for USPS master lock
- Durable Construction: Heavy-duty aluminum body with stainless steel hardware and powder-coated finish
- Secure Access: Heavy-duty cam locks with anti-fish plate on outgoing mail slot
- Integrated Parcel Lockers: Three fully integrated lockers to meet required 1:5 parcel ratio
- Flexible Installation: Recessed mount design; connector kit supports multi-unit installations
Please check the Product Data Sheet Here
Specifications Table:
| Specification | Details |
|---|---|
| Series | Salsbury 3700 Series 4C Horizontal Mailboxes |
| Mounting | Recessed mount |
| Loading | Front loading with USPS access |
| Configuration | Double column; 15 tenant doors; 3 parcel lockers; outgoing mail compartment |
| Overall Dimensions | 31.125" W x 57.125" H x 16.5" D |
| Weight | 165 lbs |
| Construction | Heavy-duty aluminum with stainless steel hardware |
| Finish Options | Powder coated in aluminum, bronze, gold, or sandstone |
| Lock Type | Heavy-duty cam locks; carrier access door for USPS master arrow lock |
| Security Features | Anti-fish plate on rear of mail slot |
| Door Sizes | MB1 3-1/4" H x 13-1/4" W; MB2 6-3/4" H x 13-1/4" W; MB3 10-1/4" H x 13-1/4" W; MB4 13-3/4" H x 13-1/4" W; parcel lockers available PL3, PL4, PL4.5, PL5, PL6 |
| Compliance | USPS-STD-4C; ADA height compliant units available |
| Outgoing Mail Slot | 10-3/4" W x 3/4" H with weather protection hood |
| Included Trim | Factory installed 3/4" W x 1/4" D trim and solid rear cover |
| Connector Kit | Includes 4C horizontal mailbox connector kit to connect multiple units |
Frequently Asked Questions (FAQ):
Q: How many tenant compartments and parcel lockers are included?
A: This double-column unit provides 15 tenant mail doors and 3 integrated parcel lockers, plus an outgoing mail compartment.
Q: Is this mailbox compliant with USPS 4C standards?
A: Yes, it is manufactured to USPS-STD-4C specifications and includes a carrier access door for the USPS-provided master arrow lock.
Q: Can it be installed outdoors?
A: Yes. It is suitable for indoor or outdoor use when recessed-mounted into a wall per manufacturer guidelines.
Q: What are the overall dimensions?
A: Approximately 31.125 in W x 57.125 in H x 16.5 in D.
Q: What finishes are available?
A: Powder-coated finishes include aluminum, bronze, gold, and sandstone; this listing shows the aluminum finish.
Streamlined, Secure, and Architecturally Clean
This recessed 4C mailbox brings a crisp, modern cadence to multi-tenant entries, with a balanced double-column layout that feels intentional and refined. The aluminum face and neatly numbered doors create a graphic rhythm—elevating utility into design. Pair it with a monochrome wall panel or textured stone surround to let the sleek hardware shine. It’s a polished essential for sophisticated, high-traffic spaces.
Upgrade your building’s mailroom with this USPS-approved, secure 4C unit—order today for streamlined delivery and tenant convenience.
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