SKU: 51811911301

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

Sale price$473.59 Regular price$526.21
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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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

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KLBlake
Phoenix, US
★★★★★ 5
Perfect for keep-away
Size: Large Size 3, Color: Red-Blue
I purchased one of these for my pup and he has a ball throwing it up in the air and chasing it. Handy for something they can play with alone.
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Reviewed in the United States on May 24, 2026
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J. Smith
Chelsea, US
★★★★★ 5
70lb dog loves this kind of ball!
This is my dog's favorite style of ball! I have purchased others before, first from a local farm supply store and then others from Amazon, and this ball is of comparable quality to the others! The multi-tag design is great for my dog who love to tug and also to throw toys for himself. It's still inflated for now, but I'm under no pretense that it will stay that way forever. Part of the enjoyment my dog gets from his toys is in their destruction, and while we haven't hit that phase yet I'm sure it will come. This ball is great for medium to large-ish dogs who enjoy a ball that is kicked, thrown, or tugged!
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Reviewed in the United States on March 18, 2026
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Charlottesville, US
★★★★★ 5
So much fun
My dog is obsessed with this. It comes deflated and you have to pump it but it only takes like 30 seconds to pump. And it comes with the pump which is so convenient! It's nice because you can leave it a tad deflated so your dog can grab onto the ball part if you want. My dog has bitten it a ton and it hasn't popped or deflated yet so it seems sturdy. I like that there are multiple handles because not only does it make it easy to play tug o war but also then you can have multiple dogs playing with it at once. Has held up good over the past week and a great source of entertainment! My dog is about the size of an aussie for reference and it is perfect size for him and small enough for him to carry.
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Reviewed in the United States on March 4, 2026
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Chris
Belleville, US
★★★★★ 5
Can’t Take These Off – Ultimate Cozy House Boots!
Size: 12-13, Color: Fleece Black
Okay, I’ll be real — these Men’s Warm Up House Boots have officially replaced my old slippers. They’re insanely comfortable, super warm, and honestly, just make cold mornings way better. The thick Sherpa fleece lining is next-level soft; it feels like walking on a plush blanket ( and that's next ). I’ve been wearing them around the house non-stop ( in fact I'm wearing them now while i'm writing this review ) , and they keep my feet toasty even with tile floors and drafty mornings (New Hampshire winters hit hard). The non-slip soles are great too — I can walk from the living room to the garage without worrying about slipping. They’re flexible like socks but have that extra grip like real slippers. I also appreciate that they’re lightweight and breathable — my feet never overheat like they do in some bulky slippers. The design looks nice too; simple and cozy without being flashy. For the price, these are such a solid find. They feel durable enough to last through multiple seasons. If you’re the kind of person who wants that perfect mix of warm, soft, and practical, these are it. These are great for travel or outdoor lounging. These are a win for winter comfort!
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JS 21
New York, US
★★★★★ 5
Awesome slippers
Size: 14-15, Color: Fleece Black
Very warm and comfy, I have sasquatch feet (14 wide) and the 14-15 size fit great with plenty of room. It's very hard to find slippers in my size and these are awesome, especially for the price! Definitely recommend these, I've been wearing them pretty much daily around the house during this especially cold northeast winter and they're holding up perfectly.
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Reviewed in the United States on March 21, 2026

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