SKU: 51811911301

Salsbury 3700 Horizontal Series 9-Compartment Recessed Mount Mailbox, Front-Loading Aluminum

Sale price$473.59 Regular price$526.21
Save 10%

Pay in installments of $131.55 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Salsbury 3700 Horizontal Series 9-Compartment Recessed Mount Mailbox, Front-Loading Aluminum9 door recessed 4C horizontal mailbox USPS approved 4C recessed mailbox with nine tenant compartments for apartments and commercial buildings. Constructed of heavy duty aluminum with stainless hardware and a durable powder coated finish, it features front loading access and an outgoing mail slot with weather hood. Key Features: USPS Approved 4C Design: Meets USPS STD 4C specs for new construction and major renovations Durable Construction: Heavy duty

9-door recessed 4C horizontal mailbox

USPS-approved 4C recessed mailbox with nine tenant compartments for apartments and commercial buildings. Constructed of heavy-duty aluminum with stainless hardware and a durable powder-coated finish, it features front-loading access and an outgoing mail slot with weather hood.


Key Features:

  • USPS Approved 4C Design: Meets USPS-STD-4C specs for new construction and major renovations
  • Durable Construction: Heavy-duty aluminum body with stainless steel hardware and powder-coated finish
  • Secure Access: Heavy-duty cam locks with dust/rain shields and 3 keys per door
  • Convenient Outgoing Mail: Integrated mail slot with anti-fish plate and weather protection hood
  • Recessed Front-Loading: Clean built-in look with factory-installed trim and solid rear cover

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Series 3700 4C Horizontal
Configuration 6-door high unit with 9 tenant doors (front loading) and outgoing mail slot
Mounting Type Recessed mount
Overall Dimensions 31.125 in W x 23.875 in H x 16.5 in D
Material Heavy-duty aluminum with stainless steel hardware
Finish Durable powder-coated (aluminum color; other finishes available)
Door Sizes MB1 doors 3-1/4 in H x 13-1/4 in W; MB2 6-3/4 in H x 13-1/4 in W; MB3 10-1/4 in H x 13-1/4 in W; MB4 13-3/4 in H x 13-1/4 in W
Security Heavy-duty cam locks with dust/rain shields; anti-fish plate on mail slot
Outgoing Mail 10-3/4 in W x 3/4 in H slot with weather protection hood
Compliance USPS-STD-4C; ADA height compliant units available
Included Factory-installed 3/4 in W x 1/4 in D trim; solid rear cover; 4C connector kit
Use Indoor or outdoor
Brand Salsbury Industries

Frequently Asked Questions (FAQ):

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


Q: How many tenant compartments does it include?
A: Nine individually numbered compartments plus an outgoing mail slot/carrier access door.


Q: Is it suitable for outdoor use?
A: Yes, it’s designed for indoor or outdoor installation with a durable powder-coated finish.


Q: What mounting style is required?
A: Recessed mount into a wall; free‑standing or surface-mount enclosures are optional accessories.


Q: Does it include locks and keys?
A: Each door includes a heavy-duty cam lock and three keys; the USPS installs the master arrow lock for the carrier access door.


Streamlined Mail Center, Seamless Architecture

This recessed mailbox unit dissolves into the wall with crisp, architectural lines, creating a refined mail hub for multifamily entries. The uniform aluminum face and numbered doors bring order and quiet sophistication to shared spaces. Pair it with warm wood cladding or honed concrete to heighten the material contrast and elevate the lobby experience. It’s a polished essential that signals thoughtful, modern living.


Upgrade your building’s mail center with this secure, USPS-approved 9-door recessed unit—built to last and ready for seamless installation.

Installation

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: 51811911301

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
G
Verified Purchase
Garfield S
Fort Morgan, US
★★★★★ 5
Nice Fit
Color: Black, White, Light Gray, Size: 3X-Large
I picked this up looking for something simple but clean, and it delivered. The fit is comfortable, the material feels solid, and it looks good without needing much effort. It’s one of those pieces you can throw on and still look put together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
R
Rob75432
Whiting, US
★★★★★ 4
Good value, soft and comfortable
Color: Black, Army Green, Light Gray, Size: 4X-Large, Color: Black, Army Green, Light Gray, Size: 4X-Large
Initial thoughts are very positive with this 3 pack shirt set. The green is similar to an OD military green and the black and gray are standard color shades. Material is soft and sizes are true to size. The mock turtleneck isn’t too tight but may still be a little annoying to some people. I do question the amount of spandex in these shirts. Tag says 5% but these shirts are extremely stretchy and feels like a higher spandex content. It’s also a little tough to figure out which way is the front of the shirt. Visually rhe front does have a lower collar line than the back but would still be nice to have a brand tag printed in the back of the shirt for quicker identification. Overall for roughly $12 a shirt these are a good choice for everyday wear. I will update rating if these shirts fail to meet expectations after further use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2025
E
Verified Purchase
Eliot
Lexington, US
★★★★★ 5
👍🏻
Color: Black, Army Green, Light Gray, Size: 5X-Large
Weirdly thick material, I wasn’t a fan but it’s a good sleep shirt
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
D
Verified Purchase
Dr. DeeJaye
Waukegan, US
★★★★★ 5
Just what I wanted.
Color: Black, Navy Blue, Wine Red, Size: 5X-Large
These may have just become my standard shirt to wear. Feels good whether tucked or out. Drapes well and fits well. So far, I can see it adjust to the different undershirt I may wear. Will probably order another set in other colors and a back up set of the basics because they will get worn a lot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2025
C
Chloe
Charlottesville, US
★★★★★ 3
Its alright
Color: Black, Size: 5X-Large
True to size per the size chart. The fabric is soft but it it feels cheap to me. It attracts lint but you can brush it off easily so its not the cheapest material I've dealt with. Also, it is opaque (not see through). There is no front/ back indicator either which is indicative of a cheap shirt in my opinion. Would be friendly for tag sensitive people (to stay positive).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026

recommand products