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The SOUTHWARK METAL 58_10X6 is a 3-piece sheet metal pipe reducer designed to transition round duct from a 10-inch diameter down to a 6-inch diameter in forced-air HVAC distribution systems. Constructed from hot dip galvanized steel, this fitting resists corrosion and holds up in both supply and return duct applications. The no-crimp design on the ends allows for standard slip or draw-band connections with adjacent duct sections. HVAC installers and sheet metal mechanics use this type of reducer wherever a main trunk or branch duct steps down to serve a smaller branch run or diffuser neck.
This reducer is suited for residential and light commercial HVAC ductwork installations. It fits into round duct systems where airflow must be directed from a larger main duct section into a smaller branch. The 3-piece construction provides consistent geometry and rigidity through the transition. Installers working to ACCA or SMACNA standards will find this fitting aligns with those specifications for duct fabrication and installation practice.
Designed as an OEM-style replacement and new-installation fitting for round sheet metal duct systems requiring a 10-inch to 6-inch concentric reduction.
Installation is performed by licensed sheet metal mechanics or HVAC technicians. Power down the air handling unit before working on any connected ductwork. Secure all joints with approved draw bands, sheet metal screws, or UL 181-listed tape per SMACNA duct construction standards. Do not force the fitting onto duct ends that are out of round, as this can compromise the seal at the joint.
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