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 16 - Jul 21

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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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4.5 ★★★★★
Based on 30 reviews
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Product Reviews
A
Verified Purchase
Anthony Ginnetti
Los Angeles, US
★★★★★ 5
Great product! Durable, chewable, awesomeness!
Color: Grilled color, Color: Grilled color
Very well made and durable. My dog hasn't left them alone since i opened them. Hes been at it for about 45 minutes straight now! Lol. He's an avid chewer. He will chew thru and fabric or cloth toys in less then a day. But these are what he really likes because they take time to chew apart. The shapes, are great, because one he props up with his paws and chews and it seems like it's easy to grip for him. Thru are hard so if you have hard floors it can get a bit noisy when he drops them. Over all this is a great product. Safe, chewable, long lasting, fun shape looks real to him (i think lol), Me and my dog Lucky are both happy with his new toys!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
J
Verified Purchase
Jackster
Natrona Heights, US
★★★★★ 5
Recommend for very heavy chewers
Color: Grilled color
My aggressive chewers love these! It’s been a few weeks and still in one piece and man they chew them for hours on end.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
N
Verified Purchase
Nicholas Kiefer
Lexington, US
★★★★★ 5
Amazingly great product!
Color: Grilled color
I’m not just saying this, ok, this is not hyperbole: this is THE best nylon bone for chewing that I have ever purchased. And you get TWO of them for relatively less expensive than most chew toys give you one! I have 2 golden retrievers, and if you know goldens, you know that they are some of the most relentless and powerful chewers around. So I can’t give them almost any toy other than rubber stuff or it will be destroyed in a period of time that doesn’t make it worth it. One of them even figured out how to destroy a supposedly indestructible toy made out of kevlar! She was able to get into it through the seam, which is not kevlar ha ha. Anyway, I digress; I never even considered nylon chews because they suck! Usually. Usually my dogs in the past have lost interest with them in less than a day. I took a chance on these mainly because of the novel shapes, the fact that they give you two, and the low price. Both my goldens LOVE these! Not just for one day, but going on weeks now! I don’t know if it’s the flavor or what, but I will see them gnawing on one of them at some point every day. And they CAN’T destroy them (I knew nylon was good for that, but it was the “who cares” attitude of my previous dogs toward nylon that kept me away). Both the “ribs” and “steak” (quite clever) are a bit worn on the edges now, but they look like they will be around for years. You can’t go wrong with this product (unless for some reason your dog does not like the flavor, but the flavor seems to be what draws my dogs to them). I highly recommend this (these) as the most cost-effective chew toy I’ve ever purchased.
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Reviewed in the United States on November 1, 2025
S
Verified Purchase
Sue Roob
Boise, US
★★★★★ 4
Great for larger dogs
Color: Grilled color
I think they were heavy duty and durable, but they were too heavy for my dog. The seller was excellent though!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
R
Verified Purchase
Rodney
Whiting, US
★★★★★ 5
Dog chew toys
Color: Grilled color
Smaller than expected but dogs liked it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

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