Lambro Industries 480L Wall Vent Kit 4 Inch Bathroom Fan

Product Description

The LAMBRO INDUSTRIES 480L is a complete wall vent kit designed for exhausting bathroom exhaust fans and similar residential ventilation applications. The kit includes all components needed to route fan exhaust through an exterior wall: a 4-inch white plastic louver vent, a 4-inch by 5-foot Lama Flex duct, a plastic adaptor, and two plastic clamps. Installers get a matched set of fittings and duct in a single package, reducing trips to the supply house and ensuring component compatibility. This kit is suited for HVAC technicians, plumbers, and general contractors completing bathroom fan rough-in or replacement work.

This wall vent kit is intended for residential bathroom exhaust fan installations where a short duct run connects the fan housing to an exterior wall vent. The 5-foot flexible duct length covers typical wall cavity runs in standard residential construction. The included louver vent mounts flush to the exterior wall surface and provides a weather-resistant termination point. The white finish suits common residential trim colors. All components are sized for 4-inch duct, which is the standard diameter for most residential bathroom exhaust fans.

Key Features

• Complete kit includes louver vent, flexible duct, adaptor, and two clamps
• 4-inch diameter components sized for standard residential bathroom exhaust fans
• 5-foot Lama Flex duct handles typical wall cavity duct runs
• White plastic louver vent provides exterior wall termination
• Plastic adaptor and clamps included for secure duct connections

Compatibility

Designed as an OEM-style replacement and new-installation kit for residential bathroom exhaust fan systems using 4-inch duct diameter wall vent terminations.

Installation Notes

Installation is typically performed by an HVAC technician or general contractor. Power to the bathroom exhaust fan must be shut off at the circuit breaker before beginning any duct or fan housing work. Follow local mechanical codes and manufacturer instructions for exterior wall penetration sealing and duct securing. Do not exceed the included duct length without consulting fan manufacturer specifications, as excessive duct run length reduces exhaust fan performance.

Technical Specifications

• Duct Diameter: 4 inches
• Flexible Duct Length: 5 feet
• Vent Color: White
• Vent Material: Plastic
• Package Weight: 12 pounds
• Package Quantity: 10 per case

Standard Information

• Brand: LAMBRO INDUSTRIES
• Manufacturer Part Number: 480L