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Description
3700 Horizontal Series 3-Compartment with 1-Parcel Locker Recessed Mount MailboxConstructed of heavy duty aluminum and stainless steel hardware, Salsbury 3700 series high security recessed mounted 4C mailboxes can be accessed from the rear. These units provide a convenient means of installing 4C horizontal mailboxes in locations where walls can accommodate a recessed mounted installation. 4C recessed mounted horizontal mailboxes are durable and corrosion resistant that can be used indoors or outdoors and feature a powder coated
Constructed of heavy-duty aluminum and stainless steel hardware, Salsbury 3700 series high security recessed mounted 4C mailboxes can be accessed from the rear. These units provide a convenient means of installing 4C horizontal mailboxes in locations where walls can accommodate a recessed mounted installation. 4C recessed mounted horizontal mailboxes are durable and corrosion resistant that can be used indoors or outdoors and feature a powder coated finish in aluminum, bronze, gold and sandstone. All mailbox doors include a heavy-duty cam lock with a dust/rain shield and includes 3 keys. The outgoing mail compartment includes a weather protection flap, mail slot and carrier access door, which includes the U.S.P.S master lock access door (lock installed by the U.S.P.S) and anti-fish plate on rear of mail slot to prevent tampering of outgoing mail. Ideal for apartments, condominiums, commercial buildings, residential developments, colleges, schools, private postal centers, corporate mail centers, military bases, government agencies and many other applications. Salsbury Industries is an ISO 9001: 2008 certified company and has excelled in the field of manufacturing since 1936.- Unit dimension: 17.5 in. W x 38.625 in. H x 17.5 in. D
- 3 total compartments and dimension: 3 MB1 doors (13.25 in. W x 3.25 in. H)
- 1-parcel locker and dimension: 1 PL5 (13.25 in. W x 17.25 in. H)
- Outgoing mail slot dimension: 10.75 in. W x 0.75 in. H
- Rear loading
Features
| Item Weight | 70 |
| Mount Type | Wall Mount |
| Number of Parcel Lockers | 1 |
| Included | Keys,Letters/Numbers,Mailbox,Mounting Hardware,Outgoing Mail Slot/Receptacle,Parcel Lockers |
| Features | Corrosion Resistant,Engravable,Fade Resistant,Leak Protected,Outgoing Mail Slot |
| Access Type | Rural |
| Returnable | 180-Day |
| Material | Aluminum |
| Multifamily Box Unit Type | Wall Mount |
| Hardware Finish Family | Stainless Steel |
| Outgoing Mail Slot | Included |
| Security | Locking |
| Wall Mounting Type | Recessed |
| Assembly Required | No |
| Product Weight (lb.) | 70 |
| Number of Compartments | 3 |
| Number of Keys Included Per Door/Compartment | 3 |
| Load Location | Back |
| Color Family | Grays |
| Color | Aluminum |
| Assembled Height (in.) | 37.5 in |
| Compartment Width (in.) | 13.25 |
| Compartment Depth (in.) | 17 |
| Assembled Depth (in.) | 17 in |
| Assembled Width (in.) | 16.375 in |
| Compartment Height (in.) | 3.25 |
| Manufacturer Warranty | 5 Year Limited |
| U.S. Postmaster General Approved | Yes |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.9 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Impressive Sound Deadening Solution with Enhanced Audio Quality
Model: NewSLS50_52
I recently purchased the Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat, and I am delighted with the results it has delivered. Right from the start, I was impressed with the packaging, which ensured the product arrived in perfect condition.
One of the standout features of this sound deadening mat is its ease of use. It was a breeze to cut and modify according to my specific needs. Whether I needed to cover specific areas or customize the size, the mat accommodated my requirements effortlessly. This flexibility made the installation process a breeze.
The Siless Sound Deadening mat has proven to be highly effective in reducing outside noise within my vehicle. With just a half cabin install, I noticed a significant reduction of approximately 10 decibels, making my driving experience much quieter and more comfortable. The mat acted as a reliable barrier against external noise, allowing me to enjoy a more peaceful ride.
Furthermore, the sound quality from my vehicle's audio system experienced a noticeable improvement. The Siless mat effectively dampened vibrations and minimized resonance, resulting in cleaner and more refined audio output. The mat's thickness of 50 mil (1.3mm) ensures optimal sound absorption, contributing to its effectiveness in creating a quieter and more enjoyable driving environment. I can now appreciate the full range of tones and enjoy a more immersive music experience during my drives.
Overall, I highly recommend the Siless 50 mil Car Sound Deadening mat for anyone seeking a reliable and effective solution to reduce noise and enhance audio quality in their vehicle. The easy cutting and modifying process, along with the excellent packaging, contribute to a seamless installation experience. With a significant reduction in outside noise and an improvement in sound system performance, this sound deadening mat has exceeded my expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2023
★★★★★ 5
Good quality sound deadener at a good price.
Model: NewSLS50_52
Quality sound deadening that adheres to body panels well. You can easily hear the vibration reduction after just the first piece by tapping on the body panel before and after.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 21, 2025
★★★★★ 4
Good stuff at a good price
Model: NewSLS50_52
Works well and sticks well. I used a roller and it has been over a year and everything still sticking as good as day i put it everywhere. I didnt use any adhesive but I did wipe everything down with acetone before I applied. Good stuff at a good price
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Reviewed in the United States on November 23, 2025
★★★★★ 5
Good value
Model: NewSLS50_52, Model: NewSLS50_52
Working perfectly. Install of stereo equipment and carpet left me wanting some heat and sound resistant materials.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ.
Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that.
Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2025
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