Salsbury Industries 3506ARU 4B Plus Vertical Mailbox

Product Description

The SALSBURY INDUSTRIES 3506ARU is a 4B Plus vertical mailbox unit designed for recessed wall mounting in multi-tenant residential and commercial buildings. Built from aluminum with a silver finish, this six-door unit meets USPS delivery requirements for centralized mail distribution. At 44 pounds, the unit is sized for permanent installation in a prepared wall cavity. Licensed contractors and property maintenance professionals handle installation of units like this one, ensuring compliance with postal regulations and local building codes.

This unit is suited for apartment complexes, condominiums, office buildings, and mixed-use developments that require USPS-approved centralized mail delivery points. The recessed mount configuration allows the unit to sit flush within a wall opening, keeping corridors clear and providing a clean finished appearance. Six individual tenant compartments accommodate standard mail volume for small-to-mid-size multi-unit properties.

Key Features

• Six individual locking mail compartments for multi-tenant use
• Recessed mount design installs flush within a prepared wall cavity
• Aluminum construction resists corrosion in interior and covered exterior locations
• Silver finish provides a neutral, professional appearance
• USPS access compliant for centralized mail delivery
• Sold as a single unit ready for installation

Compatibility

Designed as an OEM-style 4B Plus compliant centralized mail unit suitable for recessed installation in multi-tenant residential and light commercial building applications meeting USPS centralized delivery standards.

Installation Notes

Installation should be performed by a licensed contractor or qualified maintenance professional familiar with USPS 4B Plus mailbox installation requirements and local building codes. Before beginning, confirm the wall cavity dimensions match the unit footprint and that all structural framing is complete. No electrical connections are required for this unit. Consult USPS Publication 4901 and applicable local ordinances before finalizing placement and mounting.