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The Best Mail Boss 7121 In Ground Post of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best Mail Boss 7121 In Ground Post of 2022. Check our ranking below.

2,414 Reviews Scanned

SaleRank No. #1
Mail Boss 7121 Black In-Ground Mounting Post, 43 x 4 x 4 inches and Mail Boss 7155 Black Surface Mount Base Plate
  • The 43 inch in-ground steel mounting post is made of heavy-duty 10- and 14-gauge electrogalvanized steel with durable powder-coated finish. (Mail Boss 7121)
  • The surface mount black base plate is constructed of 10-gauge galvanized steel with powder-coated finish for mounting mailboxes. (Mail Boss 7155)
  • The in-ground post can be paired with the base plate for versatility in installations over 4-8 inch curbs or sidewalks.
SaleRank No. #2
Mail Boss 7122 Ground Mounting Post, 43 x 4 x 4 inches, for Use with Mailbox, Cream White
  • Post made of heavy-duty 10- and 14-gauge electrogalvanized steel
  • Features durable powder-coated finish
  • Can be used with a wooden post for deep in-ground installations
  • Includes 4 mounting bolts and clear instructions
  • Accepts all Mail Boss brand Locking Security Mailboxes
Rank No. #3
Mail Boss 7106 Curbside Steel Mailbox and 7121 In-Ground Mounting Post, Black
  • Curbside mailbox made of 12- and 14-gauge electro galvanized steel with 3 keys, reflective house numbers, 4 lag bolts, drill bit (Mail Boss 7106)
  • In-ground mounting post made of heavy-duty 10- and 14-gauge electrogalvanized steel to mount mailbox (Mail Boss 7121)
  • Mailbox has large capacity, patented anti-pry latch, 12-wafer disc lock, stainless steel hinges and powder-coated finish (Mail Boss 7106)
  • Post has durable powder-coated finish and includes 4 mounting bolts (Mail Boss 7121)
  • Mailbox dimensions - 21 in. D x 11.125 in. W x 13.75 in. H (Mail Boss 7106)
SaleRank No. #4
Mail Boss 7507 Mail Manager Security Locking Mailbox and 7122 Ground Mounting Post, Cream White
  • USPS approved full-service residential locking mailbox (Mail Manager) prevents mail-identity theft with patented anti-pry latch and 12-disc wafer lock
  • Durable 14- and 16-gauge electro galvanized welded steel construction (Mail Manager) defends against vandalism
  • Ground mounting post made of heavy-duty 10- and 14-gauge galvanized steel with durable powder-coated finish
  • Mail manager accepts small packages and deters fishing with innovative baffle door design
  • Mounting post includes 4 bolts and instructions for installing Mail Boss brand locking mailboxes
Rank No. #5
KOMOHOM 27" Mailbox Post with Mounting Bracket Installed On Concrete Floor, Compatible with Mail Boss, Architectural MAILBOXES, Gibraltar, hykolity, ShoppingOnBed, adoorn
  • Wide Compatibility: The adapter plate is compatible with Mail Boss, Architectural MAILBOXES, Gibraltar, hykolity, ShoppingOnBed, and adoorn.
  • Reinforced Base: Designed to strengthen the mailbox foundation and enhance overall stability. The widened adapter plate not only accommodates various mailbox sizes but also provides reinforced bottom support.
  • Dual-Flange Design: In-Ground Installation: The extended flange is pre-buried in concrete, significantly improving stability within the footing. Surface Mount Installation: The extended flange allows direct mounting onto the ground surface, eliminating the need for an additional mounting base.
  • Fully Sealed & Moisture-Resistant: The fully enclosed design effectively blocks moisture and air, protecting the interior of the post and extending its lifespan. The black painted finish enhances water resistance and rust prevention.
  • Included Components: Includes a 27-inch post, mailbox adapter plate, and all necessary installation hardware (Note: Excludes anchors required for surface mounting).
Rank No. #6
Mail Boss 7127 Surface Mount Post, Black
  • Post made of heavy-duty 10- and 14-gauge electrogalvanized steel
  • Features durable powder-coated finish
  • Used with Base Plate for mounting onto 4-8" sidewalk or curb
  • Includes 4 mounting bolts and clear instructions
  • Mail Boss mailbox and Base Plate not included
Rank No. #7
Mail Boss 7192 37" Hybrid Length Mailbox Mounting Post, Black
  • 37” Post made of heavy-duty 10- and 14 gauge electrogalvanized steel
  • Durable powder-coated finish
  • Can be used with MailBoss Base Plate for surface level installs
  • Can be used with 4x4” nominal wooden post for in-ground installations
  • Includes 4 mounting bolts – accepts all Mail Boss brand curbside mailboxes
Rank No. #8
Mail Boss Curbside Mailbox and In-Ground Mounting Post
  • USPS-approved full-service residential locking mailbox (Mail Boss Curbside) prevents mail-identity theft.
  • 14- and 16-gauge electro galvanized welded steel construction (Mail Boss Curbside) defends against vandalism, with an elegant wood-grain finish on the front face.
  • Can be used with a wooden post for deep in-ground installations (Mail Boss In-Ground Mounting Post). Includes 4 mounting bolts and clear instructions.
  • Dimensions (Mail Boss Curbside): 21" D x 11. 25" H x 10. 75" W.
Rank No. #9
Mail Boss 7144 Box Spreader Bar for Two-Mailbox Applications, 2, Black
  • Made of 12-gauge electrogalvanized welded steel
  • Features durable powder-coated finish
  • Easy installation for 2 Mail Boss mailboxes on 1 post
  • Compatible with Mail Boss brand curbside mailboxes (Mail Boss, Mail Manager, and Package Master models)
  • Includes all necessary hardware to install with a Mail Boss mounting post, additional hardware may be required for use with wooden posts or non-Mail Boss posts
Rank No. #10
Mail Boss 7151 Surface Mount Post Base Plate, Alpine White
  • Made of 10-gauge electrogalvanized welded steel
  • Features durable powder-coated finish
  • Used with Surface Mount Post for mounting onto a 4-8" curb or sidewalk
  • Intended for use with Mail Boss brand products only
  • Mail Boss mailbox and Post not included. Accommodates 1/4 inch fasteners, securing to a variety of mounting surfaces

Last update on 2025-08-19 / Affiliate links / Images from Amazon Product Advertising API

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Potential sources can include buying guides for Mail Boss 7121 In Ground Post, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Mail Boss 7121 In Ground Post. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Mail Boss 7121 In Ground Post buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Mail Boss 7121 In Ground Post currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Mail Boss 7121 In Ground Post has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Mail Boss 7121 In Ground Post?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Mail Boss 7121 In Ground Post.
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  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Mail Boss 7121 In Ground Post.
  7. Product Quality: You don’t always get what you pay for with an Mail Boss 7121 In Ground Post, sometimes less, and sometimes more.
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