Southwark Metal 58_16X10 Duct Reducer 16 to 10 Inch

Product Description

The SOUTHWARK METAL 58_16X10 is a round, 3-piece sheet metal duct reducer designed to transition airflow from a 16-inch diameter duct to a 10-inch diameter duct. Fabricated from hot-dipped galvanized steel, this reducer resists corrosion in both supply and return air applications. The 3-piece construction allows for field adjustment during installation, making it practical for tight mechanical spaces. HVAC technicians and sheet metal contractors use this fitting to reduce trunk line or branch duct sizes in forced-air distribution systems built to ACCA and SMACNA standards.

This duct reducer is suited for residential and light commercial forced-air HVAC systems where a step-down transition is needed between round duct segments. It fits standard round duct runs and branch takeoffs in low-pressure supply or return air configurations. The fitting is sized to connect a 16-inch main or trunk section to a 10-inch branch or downstream run, making it a common component in zoned or branched duct layouts designed to ACCA Manual D specifications.

Key Features

• Transitions from 16-inch diameter to 10-inch diameter round duct
• Hot-dipped galvanized steel construction for corrosion resistance
• 3-piece design allows field adjustment during installation
• Meets ACCA and SMACNA applicable standards
• Round profile for use with standard round duct and fittings

Compatibility

Designed as an OEM-style replacement and new-installation fitting for standard round duct systems requiring a 16-inch to 10-inch reduction, built to ACCA and SMACNA standards.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal contractor. Shut down the air handling unit and confirm the system is de-energized before working on the duct system. Secure all joints with sheet metal screws and seal with mastic or UL 181-rated tape per SMACNA guidelines. Verify duct sizing against ACCA Manual D calculations before installation to ensure proper airflow distribution.

Technical Specifications

• Larger End Diameter: 16 inches
• Smaller End Diameter: 10 inches
• Material: Hot-Dipped Galvanized Steel
• Type: Round, 3-Piece
• Crimp Supplied: No
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 58_16X10