Southwark Metal 51F485SD Register Boot 8x4x5

Product Description

The SOUTHWARK METAL 51F485SD is an 8x4x5 inch register boot designed to connect rectangular ductwork to a floor, ceiling, or wall register opening. This sheet metal fitting transitions airflow from the supply duct into the finished living space, serving as the final duct fitting before the register grille. It is a standard component in residential and light commercial forced-air HVAC distribution systems. HVAC installers and sheet metal fabricators work with this fitting during new construction and duct retrofit projects.

The 51F485SD is sized for use in forced-air supply distribution systems where an 8-inch by 4-inch duct run terminates at a 5-inch depth boot. It is installed in floor, ceiling, or sidewall applications depending on the system layout. This boot accommodates a standard register grille and is a common fitting in residential new construction, renovation work, and duct replacement scenarios.

Key Features

• 8x4x5 inch nominal dimensions suit standard residential duct configurations
• 601-style register boot profile for floor, ceiling, or wall register applications
• Sheet metal construction provides durability in supply air distribution service
• Designed to accept a standard register grille at the finished opening

Compatibility

Designed as an OEM-style replacement and new-installation fitting for residential and light commercial forced-air supply duct systems requiring an 8x4x5 inch register boot.

Installation Notes

Register boots are installed by licensed HVAC technicians or qualified sheet metal workers as part of supply air distribution ductwork. Power down the air handling equipment before working on any duct section. Secure the boot to the duct using sheet metal screws and seal all joints with UL-listed duct sealant or metal foil tape per local mechanical code requirements. Do not operate the system until all duct connections are properly sealed and the register grille is secured.

Technical Specifications

• Nominal Size: 8x4x5 inches
• Boot Style: 601 Register Boot

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 51F485SD