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Internet # 322390101

Model # MSS003AM

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Mail Slot Sleeve Accessory, Stainless Steel

$18.47
  • Keeps mail from falling into hollow core doors
  • For use with architectural mailboxes mail slots
  • Durable steel construction
  • View More Details

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Product Details

About This Product

Say goodbye to runaway mail with the Mail Slot Sleeve, the mailbox accessory that keeps letters from disappearing into hollow doors. It neatly lines your mail slot for a clean, finished look while keeping every envelope right where it should be. Made from stainless steel, this durable mailbox accessory is built to last and designed to fit all Architectural Mailboxes' Mail Slots. Installation is quick, simple, and totally stress-free with the included mounting hardware. Sleek, sturdy, and smart, it’s the little mailbox part that makes a big difference for your door.

Highlights

  • Made with rust-resistant stainless steel that stands up to corrosion, moisture, and daily wear
  • Sturdy stainless steel door mail accessory combines dependable strength with a polished, modern design
  • Designed to pair seamlessly with all Architectural Mailboxes mail slots
  • Assembly is quick and easy giving you a smooth and stress free setup
  • Includes slot sleeve and screws
  • Thoughtfully engineered with a focus on durability, function, and style
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Product Information

Internet # 322390101

Model # MSS003AM

Specifications

Dimensions

Assembled Height (in.)

2.75 in

Assembled Width (in.)

11.5 in

Details

Features

Corrosion Resistant

Finish

Stainless Steel

Finish Family

Stainless Steel

Hardware Color Family

Silver

Included

Mounting Hardware

Material

Stainless Steel

Returnable

90-Day

Shape

Rectangle

Warranty / Certifications

Manufacturer Warranty

1 Year Limited Warranty

Questions & Answers

For what thickness door
ByDec 19, 2025
1 Answer | 
Answer This Question

Thank you for your interest in our products. it fits a 1-3/4'' thick door.

By|Dec 26, 2025


    Can I get a mailbox installed in my screen door today?
    ByJul 15, 2024
    1 Answer | 
    Answer This Question

    Thank you for your interest in our products. The mailbox slot sleeve is design to over our mailbox slots which installs into a wooden door.

    By|Jul 16, 2024


      What are the specific dimensions, pleaser?
      ByMar 30, 2018
      2 Answers | 
      Answer This Question

      This mail slot is 11.5" wide; 2.75" tall and 1.75" deep.

      By|May 5, 2023

        Thank you for your interest in our products. The dimensions are 2.7'' H X 11.4'' W X 1.7'' D.

        By|Aug 8, 2025

          (2)

          function?
          ByFeb 10, 2018
          2 Answers | 
          Answer This Question

          Thank you for your interest in our products.The Mail Slot Sleeve was developed to cover the edges of exterior door openings and prevent mail from falling into hollow core doors.

          By|Aug 8, 2025

            (1)

            bought it last week

            By|Aug 10, 2022


              Viewing 1-4 of 4

              Customer Reviews

              3.8 out of 5

              • 3.8 out of 29 reviews
              • 40% recommend this product
              Filter by:
              Showing 1-10 of 29 reviews
              Design flaw!
              Purchased this item and started to review the installation process. Measured template length of 11 7/16", measured mail mail slot hinge at 11 9/16". To the engineers at Gibraltar, using the theory of "simple math", this design won't work. Home Depot should contact Gibraltar for a design correction, they have a bigger stick than I do to get things redesigned.
              by
              • Pro
              6 found this review helpful
              Minor adjustment otherwise served the purpose
              by
              • Verified Purchase
              As described. Worked and mounted.
              by
              • Verified Purchase
              This customer chose to rate the product and not provide text.
              by
              • Verified Purchase
              Beautiful color, style and was easy to install. Even though the door I ordered wasn't suppose to have a smail slot and I have not clue what I'm doing with one, I still love it as an ornamental addition to the door.
              by
              • Verified Purchase
              Purchased a new garage door that's insulated. This slot sleeve...
              Purchased a new garage door that's insulated. This slot sleeve fit perfectly. Previously on the wooden door a sleeve was not needed. However, on insulated garage doors the space between the outside of the slot and the inside exceeded the limit. The sleeve make the installation look professional and prevents the door insulation from interfering with mail delivery. If you decide to go this route you'll obviously need longer stainless steel bolts. Best to have a helper with this installation for obvious reasons.
              by
              • Verified Purchase
              Easy to install on my garage panel door, no issues...
              Easy to install on my garage panel door, no issues
              by
              • Verified Purchase
              Useful but flimsy.
              This sleeve serves its purpose by providing a smooth slot for the mail and covers the rough edges of the mail slot hole in the door, but it is flimsy and doesn't hold its rectangular shape very well.
              by
              • Verified Purchase
              • Recommended
              It fits perfectly inside the GM mail slot....
              It fits perfectly inside the GM mail slot.
              by
              • Verified Purchase
              This customer chose to rate the product and not provide text.
              by
              • Verified Purchase
              Showing 1-10 of 29 reviews

              Compare Key Features

              current item

              Product Snapshot

              Built for durability, this stainless steel mail slot sleeve prevents mail damage and fits hollow core doors.
              Ideal for secure mail delivery, this heavy-duty steel mail slot features a spring-loaded front plate and a weather-resistant design.
              Ideal for secure mail delivery with a spring-loaded front plate and interlocking flap. Durable steel construction withstands weather, ensuring lasting performance.
              Ideal for secure mail delivery with a spring-loaded front plate and durable steel construction for lasting weather resistance.

              Slot Dimensions

              11.5 in. W x 2.8 in. H x 0.8 in. D
              11.5 in. W x 2.8 in. H x 0.8 in. D
              11.5 in. W x 13 in. L

              Material Type

              Stainless Steel
              Steel
              Steel
              Steel

              Weatherproof

              Security Features

              Finish Options

              Stainless Steel
              Brass
              Rubbed Bronze
              Satin Nickel