Lambro Industries 604W Air Intake Vent 4 Inches White

Product Description

The LAMBRO INDUSTRIES 604W is a 4-inch white air intake vent designed for residential and light-commercial ventilation applications. It features four fixed louvers over a factory-installed screen, providing a clean, maintenance-free intake point that resists debris and pests without requiring adjustable damper components. The white finish integrates with standard exterior or interior wall finishes. This vent is typically installed by HVAC technicians or general contractors as part of a fresh-air intake or exhaust system where a fixed-louver termination cap is required.

This vent fits 4-inch round duct openings and is suited for use in residential forced-air systems, bathroom exhaust terminations, dryer vents, or fresh-air intake routes where a screened, louvered cover is needed. The fixed-louver design eliminates the moving parts that can seize or fail over time in exterior applications. The bulk pack configuration makes it practical for contractors handling multiple units on a single job or across several service calls.

Key Features

• 4-inch diameter fits standard 4-inch round duct openings
• Four fixed louvers provide consistent airflow direction without moving parts
• Factory-installed screen blocks debris, insects, and small pests
• White finish suits common wall and trim color schemes
• Bulk pack of 8 units per package reduces per-unit cost on multi-installation jobs

Compatibility

Designed as an OEM-style replacement or new-installation termination vent for 4-inch round duct systems in residential and light-commercial ventilation setups.

Installation Notes

Installation is typically performed by a licensed HVAC technician or contractor. Power down any associated mechanical ventilation equipment before cutting wall openings or connecting ductwork. Secure the vent to the wall surface per local building code requirements, ensuring the louvers face downward or outward to shed water. Seal the perimeter with an appropriate exterior caulk when installing on an exterior wall to prevent air and moisture infiltration.

Technical Specifications

• Diameter: 4 inches
• Color: White
• Louver Type: Fixed, 4-louver configuration
• Screen: Factory-installed
• Weight: 2.08 pounds
• Package Quantity: 8 units per pack
• Unit of Measure: EA

Standard Information

• Brand: LAMBRO INDUSTRIES
• Manufacturer Part Number: 604W