SKU: 1021425893

Salsbury 3700 Horizontal Series 4-Compartment Recessed Mount Mailbox

Sale price$444.11 Regular price$493.45
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Salsbury 3700 Horizontal Series 4-Compartment Recessed Mount Mailbox4 Compartment Recessed 4C Horizontal Mailbox Durable 4C recessed mounted mailbox unit by Salsbury Industries featuring four tenant compartments and an integrated parcel locker. Constructed of heavy duty aluminum with stainless hardware, it meets USPS STD 4C for indoor or outdoor installations. Key Features: USPS Approved 4C Design: Complies with USPS STD 4C for new construction and major remodels Rugged All Metal Build: Heavy duty aluminum body with

4-Compartment Recessed 4C Horizontal Mailbox

Durable 4C recessed-mounted mailbox unit by Salsbury Industries featuring four tenant compartments and an integrated parcel locker. Constructed of heavy-duty aluminum with stainless hardware, it meets USPS-STD-4C for indoor or outdoor installations.


Key Features:

  • USPS-Approved 4C Design: Complies with USPS-STD-4C for new construction and major remodels
  • Rugged All-Metal Build: Heavy-duty aluminum body with stainless steel hardware and powder-coated finish
  • Secure Access: Heavy-duty cam locks with dust/rain shields; includes outgoing mail slot with anti-fish plate
  • Rear-Loading Configuration: One column unit with rear access door(s) for mail delivery and maintenance
  • Flexible Placement: Recessed mount installation suitable for apartments, commercial buildings, and residential communities

Specifications Table:

Specification Details
Series 3700 4C Horizontal Mailboxes
Mounting Type Recessed mount
Loading Rear loading (USPS access)
Configuration Single column; 4 tenant doors + 1 parcel locker + outgoing mail compartment
USPS Compliance USPS-STD-4C; USPS approved
Material Heavy-duty aluminum with stainless steel hardware
Finish Durable powder-coated (colors available: aluminum, bronze, sandstone, black)
Dimensions 17 in W x 37.875 in H x 16.5 in D
Door Sizes MB1: 3.25 in H x 12.75 in W; MB2: 6.75 in H x 12.75 in W; MB3: 10.25 in H x 12.75 in W; MB4: 13.75 in H x 12.75 in W (varies by configuration)
Outgoing Mail Slot 11.75 in W x 0.75 in H with weather hood and anti-fish plate
Locks Heavy-duty cam locks with dust/rain shields; includes 3 keys per door
Included Factory-installed 1 in W x 0.25 in D trim; connector kit for linking multiple units
ADA Compliance ADA height compliant units available

Frequently Asked Questions (FAQ):

Q: Is this mailbox USPS approved?
A: Yes, it is manufactured to USPS-STD-4C specifications and is USPS approved for delivery.


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


Q: How many compartments are included?
A: The unit includes four tenant mail compartments plus an integrated parcel locker and an outgoing mail slot.


Q: How is the unit loaded?
A: This is a rear-loading unit with rear access door(s) for the carrier.


Q: What are the overall dimensions?
A: Approx. 17" W x 37.875" H x 16.5" D.


Streamlined Mail Management with Architectural Poise

This recessed 4C mailbox whispers precision—its clean aluminum face brings a modern, purposeful rhythm to corridors and lobbies. I adore the orderly grid of numbered compartments punctuated by a generous parcel locker, a study in function made beautiful. Pair it with cool concrete, graphite paint, and linear sconces to create a refined mail alcove. It’s a quiet luxury essential that elevates everyday routines with impeccable design.


Upgrade your building’s mail system with this USPS-approved recessed 4C unit for secure, streamlined delivery—order today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1021425893

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★★★★★ 4
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Very soft and plush blanket, although it not as thick and heavy as previously purchased in another color (same brand) it’s still a nice blanket.
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Reviewed in the United States on May 7, 2026
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Charlottesville, US
★★★★★ 5
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Size: 60"x80", Color: Dark Brown
Can’t believe how soft this blanket is! Was kinda going back and fourth about getting it because of the cost but honey money well spent. 10/10 no notes
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Reviewed in the United States on May 24, 2026
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LadyRN
Lowell, US
★★★★★ 5
Heartfelt Gesture of Appreciation
Size: Classic Cozy Collection, Color: "Thank You" Card
The Unboxme Thank You Gift Box proved to be the epitome of a thoughtful and appreciated gift. I recently chose this box as a thank you gift for my mother-in-law, and it was met with genuine delight and gratitude. The Warm + Cozy theme of the box was not just a label; it encapsulated the essence of the carefully curated items within. From the moment she opened the box, my mother-in-law was greeted with an array of cozy delights that radiated warmth and care. The inclusion of quality items, such as a plush blanket, scented candle, and gourmet treats, showcased the attention to detail in selecting items that truly contribute to a cozy and comforting experience. The blanket, in particular, was not just a token gesture but a genuinely luxurious addition that she immediately embraced. The packaging was not only aesthetically pleasing but also conveyed a sense of thoughtfulness and care in the presentation of the gift. The attention to detail in the arrangement of items and the quality of the box itself elevated the entire unboxing experience. What made this gift even more special was its versatility. The Warm + Cozy box is suitable for various recipients, including clients, coworkers, bosses, neighbors, and employees. Its universal appeal speaks to its well-rounded selection of items that can bring joy to a wide range of individuals. In conclusion, the Unboxme Thank You Gift Box for Women, Warm + Cozy edition, is more than just a collection of items; it's a gesture of genuine appreciation and care. My mother-in-law's positive reaction is a testament to the success of this thoughtful gift. Highly recommended for anyone looking to express gratitude with a touch of warmth and coziness.
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Reviewed in the United States on December 11, 2023
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Stephen W
Grantham, US
★★★★★ 5
Big hit present for mom.
Size: Classic Cozy Collection, Color: "Sending Hugs" Card
My wife of 59years loved this gift. She said it was such a thoughtful gift. She is a tea lover too. This was not flowers or clothes so big surprised.
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Lexington, US
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