Southwark Metal SL24-26GA_18IN Round Sheet Metal Pipe 18in 26GA

Product Description

The SOUTHWARK METAL SL24-26GA_18IN is a hot dip galvanized steel round pipe section designed for low-pressure HVAC duct distribution systems. Manufactured to 26 gauge material thickness with an 18-inch diameter and 24-inch length, this snap-lock pipe section provides a rigid, corrosion-resistant airflow path in residential and light commercial ductwork. The galvanized steel construction meets SMACNA and ACCA fabrication standards, making it a code-compliant choice for forced-air supply and return trunk or branch runs. HVAC sheet metal installers and duct fabricators are the primary trades working with this product.

This pipe section is suited for round duct systems in residential new construction, HVAC retrofit projects, and light commercial forced-air installations. The 18-inch diameter is commonly used in main supply or return trunk runs where higher airflow volumes are required. The snap-lock seam speeds field assembly and reduces the need for additional fasteners along the longitudinal seam during installation.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in air handling environments
• 26 gauge material thickness suitable for standard low-pressure HVAC duct applications
• 18-inch diameter accommodates high-volume airflow trunk and branch runs
• 24-inch pipe length for consistent, manageable field installation
• Snap-lock end type allows fast, secure longitudinal seam closure without separate fasteners
• Complies with ACCA and SMACNA applicable standards for sheet metal duct fabrication

Compatibility

Designed as an OEM-style component for round galvanized sheet metal duct systems meeting SMACNA and ACCA standards for low-pressure forced-air HVAC applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal worker in accordance with SMACNA duct construction standards and local mechanical codes. Shut down the air handling unit and isolate the duct system before cutting into existing ductwork or making connections. Joints should be secured with sheet metal screws and sealed with UL 181-listed mastic or foil tape per local code requirements. Use appropriate sheet metal snips, hand seamers, and crimping tools when cutting or joining sections.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Material Thickness: 26 Gauge
• Diameter: 18 inches
• Length: 24 inches
• End Type: Snap-Lock
• Type: Round
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: SL24-26GA_18IN