SKU: 64000757519

Salsbury 3700 Horizontal Series Recessed-Mount Mailbox with 3 Parcel Lockers

Sale price$1087.23 Regular price$1208.03
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

Salsbury 3700 Horizontal Series Recessed-Mount Mailbox with 3 Parcel Lockers3700 Series Recessed 4C Mailbox, 3 Parcel Lockers USPS approved recessed 4C horizontal mailbox constructed from heavy duty aluminum with stainless steel hardware. Designed for apartments and commercial buildings, this maximum height double column unit features 15 tenant doors plus three integrated parcel lockers and an outgoing mail compartment. Key Features: USPS 4C Compliance: Approved front loading unit with carrier access door for USPS master lock

3700 Series Recessed 4C Mailbox, 3 Parcel Lockers

USPS-approved recessed 4C horizontal mailbox constructed from heavy-duty aluminum with stainless steel hardware. Designed for apartments and commercial buildings, this maximum-height double-column unit features 15 tenant doors plus three integrated parcel lockers and an outgoing mail compartment.


Key Features:

  • USPS 4C Compliance: Approved front-loading unit with carrier access door for USPS master lock
  • Durable Construction: Heavy-duty aluminum body with stainless steel hardware and powder-coated finish
  • Secure Access: Heavy-duty cam locks with anti-fish plate on outgoing mail slot
  • Integrated Parcel Lockers: Three fully integrated lockers to meet required 1:5 parcel ratio
  • Flexible Installation: Recessed mount design; connector kit supports multi-unit installations

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Series Salsbury 3700 Series 4C Horizontal Mailboxes
Mounting Recessed mount
Loading Front loading with USPS access
Configuration Double column; 15 tenant doors; 3 parcel lockers; outgoing mail compartment
Overall Dimensions 31.125" W x 57.125" H x 16.5" D
Weight 165 lbs
Construction Heavy-duty aluminum with stainless steel hardware
Finish Options Powder coated in aluminum, bronze, gold, or sandstone
Lock Type Heavy-duty cam locks; carrier access door for USPS master arrow lock
Security Features Anti-fish plate on rear of mail slot
Door Sizes MB1 3-1/4" H x 13-1/4" W; MB2 6-3/4" H x 13-1/4" W; MB3 10-1/4" H x 13-1/4" W; MB4 13-3/4" H x 13-1/4" W; parcel lockers available PL3, PL4, PL4.5, PL5, PL6
Compliance USPS-STD-4C; ADA height compliant units available
Outgoing Mail Slot 10-3/4" W x 3/4" H with weather protection hood
Included Trim Factory installed 3/4" W x 1/4" D trim and solid rear cover
Connector Kit Includes 4C horizontal mailbox connector kit to connect multiple units

Frequently Asked Questions (FAQ):

Q: How many tenant compartments and parcel lockers are included?
A: This double-column unit provides 15 tenant mail doors and 3 integrated parcel lockers, plus an outgoing mail compartment.


Q: Is this mailbox compliant with USPS 4C standards?
A: Yes, it is manufactured to USPS-STD-4C specifications and includes a carrier access door for the USPS-provided master arrow lock.


Q: Can it be installed outdoors?
A: Yes. It is suitable for indoor or outdoor use when recessed-mounted into a wall per manufacturer guidelines.


Q: What are the overall dimensions?
A: Approximately 31.125 in W x 57.125 in H x 16.5 in D.


Q: What finishes are available?
A: Powder-coated finishes include aluminum, bronze, gold, and sandstone; this listing shows the aluminum finish.


Streamlined, Secure, and Architecturally Clean

This recessed 4C mailbox brings a crisp, modern cadence to multi-tenant entries, with a balanced double-column layout that feels intentional and refined. The aluminum face and neatly numbered doors create a graphic rhythm—elevating utility into design. Pair it with a monochrome wall panel or textured stone surround to let the sleek hardware shine. It’s a polished essential for sophisticated, high-traffic spaces.


Upgrade your building’s mailroom with this USPS-approved, secure 4C unit—order today for streamlined delivery and tenant convenience.

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: 64000757519

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4.6 ★★★★★
Based on 7 reviews
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J
Verified Purchase
J. Randle
Lake Worth, US
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
V
Verified Purchase
Vonda Kioultzopoulos
Louisville, US
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
T
Verified Purchase
Tessy
San Leandro, US
★★★★★ 1
Burned my already sensitive feet, too big
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
M
Verified Purchase
Ms. Mac
Fort Morgan, US
★★★★★ 5
Just as good as paraffin wax
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
S
Verified Purchase
SKI
Fort Morgan, US
★★★★★ 5
Love these!
Color: Pink & Beige, Size: Small(fits up to size 7)
Love these! As I write this review, I’m sitting in my recliner with these on. I have had other silicone socks in the past and would like to share a few of the things that I have learned. These fit great! The others were 2-3 sizes too big because you could not order a size. I wear a size 7 women’s shoe. I got the smaller size. I walked around my apartment in my old ones and they got kinda yucky. Now, I sit in my recliner, put them on and chill for a few hours. I now take them off and put in a ziplock bag so they stay nice and clean (no cat hair!). I use them once a week usually on Saturday or Sunday as I’m a working girl. Also, I use Auqaphor before I put them on and put cotton socks on after I’m finished. Your feet will be SO soft. This is not a one and done…I do this every week especially during sandal season! I know this was lengthy and I hope you got some tips.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026

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