16 Door Bronze Postal Products Unlimited F-Spec Cluster Mailbox with Pedestal - Type 3 CBU
Bronze 16-Door USPS Type 3 Cluster Box Unit — Traditional Finish, Maximum Capacity
The Postal Products Unlimited 16-Door F-Spec Cluster Mailbox in Bronze serves up to sixteen tenants from a single pedestal-mounted, USPS-approved unit, in a warm bronze powder-coat finish that complements brick, wood, and traditional construction. Two parcel lockers (one tall, one standard) provide on-site package delivery without re-routes, and the integrated outgoing mail slot eliminates the need for a separate outgoing receptacle. This is the USPS Type 3 CBU specification.
About the Manufacturer — Postal Products Unlimited
Postal Products Unlimited (PPU) is a USPS-approved manufacturer of commercial cluster mailboxes with a 25+ year history and ISO 9001:2015 certified quality management. PPU's F-Spec CBUs share the USPS specification with Auth-Florence's 1570-series and Salsbury Industries' 33-series cluster mailboxes — same dimensions, same door counts, same security features, same USPS approval — and give you a third brand option when matching an existing on-property mailbox or sourcing a backup supplier. We carry the full line in all four powder-coat finishes.
What's Included
- USPS-approved CBU with 16 tenant compartments
- 2 parcel lockers (10¼" tall and 13¾" tall)
- 1 outgoing mail slot
- Pedestal, rubber gasket, and template
- USPS-developed locks with weather shield (3 keys per door)
- Installation guide and template
Anti-Vandalism Engineering
- 360° wrapped hinges block hinge-pin tampering
- Reinforced lock cam and minimized pry exposure
- Overlapping master doors resist prying at the seam
- Strengthened tenant gaps to defeat fishing
- Dust- and rain-sealed lock shields
Specifications
- USPS Compliance: Approved F-Spec, Type 3
- Tenant doors: 16 @ 12⅞" × 3"
- Parcel lockers: 2 (10¼" and 13¾" tall)
- Outgoing slot: 10¾" × 1"
- Assembled dimensions: 30½" L × 18⅞" W × 62" H
- Weight: 114 lbs
- Construction: Stainless steel and aluminum, corrosion-resistant
- Finish: Bronze powder coat
- Cross-reference: Equivalent to Auth-Florence 1570-16 and Salsbury 3316
Best Fit For
Sixteen-unit-plus brick condo buildings, traditional apartment complexes, historic-district properties, and HOAs where bronze hardware matches existing fixtures.
Downloads & Documentation
CAD Drawings (PDF)
CAD Drawings (DXF)
CAD Drawings (DWG / AutoCAD)
Main Instructions (PDF)
Installation Instructions (PDF)
Engraving Instructions (PDF)
Ships in 2–3 business days with standard numbering. Custom numbering is available on request and may take up to an additional 5-6 days.






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