SKU: 45291070793

Salsbury Industries 41 in. H x 31-1/8 in. W Aluminum Front Loading 4C Horizontal Mailbox with 20 MB1 Doors

Sale price$1034.10 Regular price$1149.00
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

Salsbury Industries 41 in. H x 31-1/8 in. W Aluminum Front Loading 4C Horizontal Mailbox with 20 MB1 DoorsFront Loading 4C Horizontal Mailbox, 20 MB1 Doors USPS approved recessed mounted 4C horizontal mailbox built from heavy duty aluminum with stainless hardware. Front loading design includes 20 MB1 tenant doors and an outgoing mail compartment, ideal for apartments and commercial buildings. Key Features: USPS Approved: Meets USPS STD 4C for secure mail delivery Durable Construction: Heavy duty aluminum body with stainless steel hardware and powder

Front-Loading 4C Horizontal Mailbox, 20 MB1 Doors

USPS-approved recessed-mounted 4C horizontal mailbox built from heavy-duty aluminum with stainless hardware. Front-loading design includes 20 MB1 tenant doors and an outgoing mail compartment, ideal for apartments and commercial buildings.


Key Features:

  • USPS Approved: Meets USPS-STD-4C for secure mail delivery
  • 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
  • Outgoing Mail Slot: Integrated, labeled compartment with weather protection hood
  • Recessed Mounting: Factory-installed trim and solid rear cover for clean, flush installation

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Mounting Style Recessed-mounted (front loading)
Overall Dimensions 31.125" W x 41.375" H x 16.5" D
Construction Heavy-duty aluminum with stainless steel hardware
Finish Durable powder coat (aluminum, bronze, gold, sandstone options)
Doors 20 MB1 tenant doors (3-1/4" H x 13-1/4" W) with heavy-duty cam locks and 3 keys
Outgoing Mail Integrated compartment labeled “Outgoing Mail” with 10-3/4" W x 3/4" H slot and weather protection hood
USPS Compliance Manufactured to USPS-STD-4C; USPS installs master arrow lock on carrier access door
Parcel Locker Guidance USPS requires minimum 1 parcel locker per 5 tenant compartments; minimum 15" H locker to meet ratio
Trim & Cover Factory-installed 3/4" W x 1/4" D trim and solid rear cover
ADA ADA height compliant units available
Series Salsbury 3700 Series 4C Horizontal Mailboxes

Frequently Asked Questions (FAQ):

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


Q: How many tenant compartments are included?
A: This unit includes 20 MB1 (3-1/4" H x 13-1/4" W) doors plus an outgoing mail compartment.


Q: Can it be installed outdoors?
A: Yes, it is suitable for indoor or outdoor use thanks to its powder-coated, all-aluminum construction.


Q: What mounting style is required?
A: This is a recessed-mounted unit designed to install flush within a wall opening.


Q: Does it come with locks and keys?
A: Each door includes a heavy-duty cam lock and 3 keys; the USPS installs the master arrow lock for carrier access.


Streamlined Mail Management with Architectural Poise

This sleek aluminum mailbox brings order and refinement to multifamily entries and commercial corridors. Its crisp, recessed silhouette and uniform, numbered doors create a modern grid that feels both functional and elevated. Pair it with warm wood paneling or polished concrete to accentuate the powder-coated finish and subtle hardware detailing. A considered essential for sophisticated, high-traffic spaces, it delivers durability with design-forward clarity.


Upgrade your property’s mail center with this USPS-approved, 20-door 4C mailbox—built for durability, security, and a clean recessed 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: 45291070793

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Peter
Lexington, US
★★★★★ 5
Great socks, watch out for bad seller
Number of Items: 6, Color: Black (6-pairs), Size: Medium
The socks are great, comfy, padded where you want it. I used these for work socks; I have a blend of corporate desk life and maintenance work. I like the low cut so my shoes don't rub the back of my ankle but not so high that socks always fall down. Great for running and sports as well. Been using these for years. Buyer beware though of the particular seller Liegnitz Group: They were late shipping, sent me the wrong socks so I sent for a return and they send me the right ones. My return got delivered back to them but they did not process it and did not send out any new ones. They cancelled my order and acted like I got the right ones all along. Buy from a different retailer.
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Reviewed in the United States on November 8, 2024
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Terry Hale
Birmingham, US
★★★★★ 5
Comfortable with perfect fit
Number of Items: 6, Color: White (6-pairs), Size: Medium
I have had these socks for a few weeks now and wear them when running. I have small feet at a men's size 7 and they fit perfectly. Most men's socks are to big for my feet. They are pretty thin but well made and have good cushion. I recommend these for anyone that likes ankle socks for athletic activities.
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Reviewed in the United States on March 19, 2024
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Notimpressed
Bozeman, US
★★★★★ 4
Husband loves socks
Number of Items: 6, Color: Black (6-pairs), Size: Large
Socks are very comfortable and soft. He got rid of the other ones he had! Also, it was a great price.
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Reviewed in the United States on January 9, 2024
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pena_89
Draper, US
★★★★★ 5
Good product
Number of Items: 6, Color: Black (6-pairs), Size: Large
Good fit, item as advertised!
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Reviewed in the United States on May 19, 2026
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Keith
Pawtucket, US
★★★★★ 5
Great socks
Number of Items: 6, Color: Black (6-pairs), Size: Medium
I love these socks
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Reviewed in the United States on May 18, 2026

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