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The SOUTHWARK METAL SL60-30GA_6IN is a 30-gauge hot-dip galvanized steel round pipe section used in low-pressure HVAC duct distribution systems. Measuring 6 inches in diameter and 60 inches in length, it connects to standard snap-lock fittings for fast, tool-light assembly on the job. The hot-dip galvanized finish provides corrosion resistance suitable for supply and return air applications in residential and light commercial construction. HVAC sheet metal installers and duct fabricators rely on this pipe for trunk-and-branch and radial duct layouts where consistent gauge and dimensional accuracy matter.
This pipe section is used in forced-air heating and cooling duct systems where round galvanized pipe is the specified or preferred distribution method. It is appropriate for residential new construction, retrofit installations, and light commercial HVAC projects. The snap-lock seam allows field assembly without additional seaming tools, making it well-suited for crews running multiple duct branches from a central trunk. It conforms to ACCA and SMACNA standards, which are commonly required on permitted commercial and residential HVAC installations.
Designed as an OEM-style replacement and new-construction component for 6-inch round galvanized snap-lock duct systems built to ACCA and SMACNA standards.
Installation should be performed by a licensed HVAC technician or sheet metal contractor in accordance with SMACNA duct construction standards and local mechanical codes. Power down the air handler or furnace and isolate the duct system before connecting or modifying existing ductwork. Secure all joints with sheet metal screws and seal with UL 181-listed mastic or foil tape as required by code. Avoid over-spanning unsupported duct runs; follow SMACNA hanger and support spacing guidelines for the gauge and diameter in use.
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