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The LOMANCO CV2BW is a 2-inch circular wall vent designed to remove trapped moisture from wall cavities in residential and light commercial construction. Built from heavy-duty aluminum, the CV2BW uses a drill pop-in installation method, eliminating the need for fasteners or framing modifications during install. The white finish blends with standard exterior siding. This vent is sold as a 6-pack, making it practical for multi-vent jobs and new construction runs where several penetrations are needed at once. Carpenters, siding contractors, and general contractors are the primary installers, though HVAC and weatherization crews also use these in moisture-control applications.
The CV2BW is suited for residential wall cavity ventilation where moisture accumulation is a concern, such as exterior walls in humid climates or areas prone to condensation. The 2-inch diameter fits standard drill-out openings, and the circular profile makes placement flexible on wood, vinyl, or composite siding. The white color is appropriate for light-colored siding applications. The 6-pack format is well-suited to tract construction, remodel work, or service calls requiring multiple vent installations in a single visit.
Designed as an OEM-style replacement or new-installation vent for standard 2-inch drill-out openings in residential and light commercial exterior wall assemblies.
Installation is performed by drilling a 2-inch hole in the exterior wall surface and pressing the vent into the opening. Power down any electrical systems in the work area before drilling into wall cavities to avoid contact with wiring. Follow local building codes regarding exterior wall penetrations and vapor management. Do not install in locations where the vent opening could be blocked by insulation, trim, or other obstructions that would restrict airflow.
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