Lomanco CV4W Circular Wall Vent 4 Inches White Aluminum

Product Description

The LOMANCO CV4W is a 4-inch circular wall vent designed to exhaust moisture from wall cavities in residential and light commercial construction. Fabricated from heavy-duty aluminum with a white mill finish, this vent provides a durable, corrosion-resistant solution for maintaining proper wall ventilation. By allowing moisture-laden air to escape, it helps prevent paint peeling, wood rot, and mold development behind exterior wall surfaces. Licensed contractors and experienced installers use this type of vent in new construction and retrofit applications where building envelope moisture management is a priority.

The CV4W fits into a 4-inch round wall opening and is suited for exterior wall installations in residential homes and light commercial buildings. It is a common specification in applications where vapor drive through wall assemblies creates persistent moisture problems, including crawlspace walls, bathroom exhaust terminations, and general wall cavity ventilation. Its white finish blends with standard painted exterior surfaces without requiring additional finishing work.

Key Features

• Heavy-duty aluminum construction for long-term corrosion resistance
• White mill finish reduces need for field painting on standard exteriors
• 4-inch round profile fits standard wall vent openings
• Removes moisture from wall cavities to help prevent paint peeling and wood damage
• Lightweight design simplifies handling and installation

Compatibility

Designed as an OEM-style replacement or new-installation circular wall vent for 4-inch round exterior wall penetrations in residential and light commercial construction.

Installation Notes

Installation is typically performed by a licensed contractor or experienced builder following local building codes. Ensure the wall opening is clean, correctly sized at 4 inches in diameter, and free of obstructions before fitting the vent. Seal the perimeter with an appropriate exterior-grade caulk to prevent water infiltration around the flange. Confirm that local code requirements for exterior wall vent placement and spacing are met before completing the installation.

Technical Specifications

• Vent Diameter: 4 inches
• Finish: White Mill
• Material: Heavy-Duty Aluminum
• Weight: 3 pounds
• Unit of Measure: Each
• Package Quantity: 36

Standard Information

• Brand: LOMANCO
• Manufacturer Part Number: CV4W