Southwark Metal 51F8109SD Register Boot 10x8x9

Product Description

The SOUTHWARK METAL 51F8109SD is a 601 series sheet metal register boot designed to transition ductwork to a floor, wall, or ceiling register opening. The boot connects rectangular duct to a standard register face, directing conditioned air into the living or working space. It is a core component in residential and light commercial forced-air HVAC distribution systems. HVAC installers and sheet metal contractors use this fitting during new construction and renovation work to terminate supply duct runs at the register location.

The 51F8109SD is sized at 10 inches by 8 inches by 9 inches, making it suitable for medium-capacity supply runs in residential forced-air systems. The 601 series designation identifies it as a standard duct fitting within the Southwark Metal product line. This boot is typically installed at the end of a rectangular supply trunk or branch run, connecting to a floor drop, sidewall, or ceiling register frame.

Key Features

• 601 series register boot construction for standard supply air terminations
• 10 x 8 x 9 inch sizing fits medium residential supply duct runs
• Sheet metal fabrication for durability in forced-air distribution systems
• Compatible with standard register and grille face openings at the termination point

Compatibility

Designed as an OEM-style replacement or new-construction fitting for residential and light commercial forced-air HVAC duct systems requiring a rectangular-to-register transition boot.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal contractors following local mechanical codes and SMACNA duct construction standards. Power down the air handling system before installing or modifying duct fittings. Secure the boot to the duct and register frame using sheet metal screws and approved duct sealant or mastic to prevent air leakage at connections.

Technical Specifications

• Series: 601
• Duct Opening Dimensions: 10 x 8 x 9 inches

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 51F8109SD