Lambro Industries 450L Flexible Dryer Duct 4in X 50ft

Product Description

The LAMBRO INDUSTRIES 450L is a flexible dryer duct designed for residential and light commercial dryer exhaust applications. Measuring 4 inches in diameter and 50 feet in length, this bulk-pack duct provides HVAC and appliance installation professionals with the flexibility needed to route exhaust airflow through walls, ceilings, and tight mechanical spaces. The 50-foot length reduces the need for multiple duct sections and field splices, making it well suited for longer exhaust runs where a single continuous run is preferred.

This duct is intended for use in dryer exhaust ventilation systems where a flexible 4-inch round duct is required. The bulk-pack format makes it a practical choice for contractors and service technicians who install or replace dryer venting on a regular basis. It is appropriate for residential laundry rooms and similar light commercial settings where standard 4-inch dryer exhaust connections are specified.

Key Features

• 4-inch diameter matches the standard exhaust outlet on most residential dryers
• 50-foot length accommodates longer duct runs without field splices
• Flexible construction allows routing around obstructions in wall and ceiling cavities
• Bulk pack format suits contractors handling multiple installations

Compatibility

Designed as an OEM-style replacement or new-installation flexible duct for standard 4-inch residential and light commercial dryer exhaust systems.

Installation Notes

Dryer exhaust duct installation is typically performed by licensed HVAC technicians or appliance installation contractors. Disconnect power to the dryer before beginning any ductwork. Follow local mechanical codes and manufacturer requirements regarding maximum duct length, number of elbows, and termination point to ensure adequate exhaust velocity. Avoid compressing or sharply kinking the flexible duct, as restrictions reduce airflow and increase lint buildup risk.

Technical Specifications

• Diameter: 4 inches
• Length: 50 feet
• Weight: 9 pounds
• Package Quantity: 1
• Unit of Measure: BX

Standard Information

• Brand: LAMBRO INDUSTRIES
• Manufacturer Part Number: 450L