Lukjan rb204105 Straight Duct Boot 4x10x8 Galvanized 30 Gauge

Product Description

The LUKJAN rb204105 is a straight duct boot end fitting constructed from 30-gauge hot-dipped galvanized steel, designed for use in residential forced-air HVAC distribution systems. This boot connects supply ductwork to floor, wall, or ceiling registers, directing conditioned air from the air handler into occupied spaces. The galvanized steel construction provides rust resistance and long service life in typical duct environments. It measures 4 inches in length by 10 inches in width by 8 inches in height and includes a damper for airflow adjustment. Sheet metal contractors and HVAC installers are the primary tradespeople who work with this fitting.

This straight duct boot is intended for residential forced-air applications where a supply register must be connected to rectangular duct. It fits into standard duct system layouts and is suited for floor, sidewall, or ceiling register terminations depending on orientation. The fitting is fabricated to ACCA and SMACNA dimensional recommendations, making it appropriate for systems designed to those standards. The included damper allows the installer to balance airflow at the register location without additional hardware.

Key Features

• 30-gauge hot-dipped galvanized steel construction for rust resistance and durability
• Straight duct boot end design for direct register connection in forced-air systems
• Integrated damper included for register-level airflow balancing
• Fabricated to ACCA and SMACNA recommendations for dimensional accuracy
• Hand-crafted to reduce noise and friction losses at the boot transition
• True-to-gauge construction for consistent fit with standard duct components

Compatibility

Designed as an OEM-style replacement and new-installation fitting for residential forced-air supply duct systems using standard rectangular duct and register connections.

Installation Notes

Installation is performed by licensed sheet metal contractors or qualified HVAC technicians. Power down the air handling unit at the disconnect before cutting into or modifying any duct section. Secure the boot to the duct with sheet metal screws and seal all joints with mastic sealant or listed foil tape in accordance with local mechanical codes and SMACNA duct construction standards. Do not rely on duct tape alone as a long-term sealant.

Technical Specifications

• Type: Straight Duct Boot End
• Construction: Hot-Dipped Galvanized Steel
• Gauge: 30 Gauge
• Length: 4 inches
• Width: 10 inches
• Height: 8 inches
• Damper: Included

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: rb204105