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USPS Approved Cluster Box Units

The USPS approved Cluster Box Units (F-Spec CBU) are used for centralized delivery of mail and parcel delivery. These secure, attractive, freestanding, and locking outdoor cluster mailboxes are constructed of stainless steel, durable aluminum, and corrosion-resistant components. Cluster Mailboxes are approved for use throughout the U.S. in all weather conditions, making it the primary external delivery system for the USPS. These USPS Approved mailboxes feature a rain shield for added protection from the elements, 360 degree wrapped hinges and an attractive powdercoat finish.

With F-Spec mailboxes, outdoor commercial mailboxes, and even decorative cluster mailboxes, we're sure you'll find the unit you're looking for on MailProducts.com

No Other Manufacturer Offers The Value That Postal Products Unlimited Does On Cluster Mailboxes:

  • 25% Off For A Limited Time (Price As Marked)
  • Price Match Guarantee On 10+ Units And Additional Large Quantity Discounts!
  • Quickship Program – Now In Place!
  • Free – Shipping And Delivery, 50% Off Liftgate! Ships Within 72 Hours (Continental Us)!
  • Free – Installation Anchor Hardware!
  • Free – Replacement Lock And 3 Keys (One Per Unit)!
  • Free – Rubber Pedestal Gasket!
  • Free - Installation Guide And Template!
  • Free – Installation Referral Program!
  • Free – Master Load Door Spacer Tabs!
  • …And Also Free, The Industry’s Largest Selection Of Custom-Engraved Number Tags! 10 Options To Choose From!