Southwark Metal SL24-30GA_4IN Round Sheet Metal Pipe 30GA 4in

Product Description

The SOUTHWARK METAL SL24-30GA_4IN is a 30-gauge hot-dip galvanized steel round pipe section designed for low-pressure air distribution in residential and light commercial HVAC duct systems. Measuring 4 inches in diameter and 24 inches in length, it features a snap-lock seam for quick field assembly without additional fasteners. The hot-dip galvanized finish resists corrosion in both supply and return air applications. Licensed sheet metal mechanics and HVAC technicians typically install this pipe as part of a trunk-and-branch or radial duct layout. It is manufactured to meet ACCA and SMACNA standards for round duct construction.

This pipe section is suited for residential forced-air furnace and air conditioning duct systems, as well as light commercial air handling applications where 4-inch round duct is specified. It connects into standard 4-inch round duct fittings, boots, and collars. The snap-lock end type allows installers to assemble runs quickly in tight ceiling, crawlspace, and wall-chase conditions. SMACNA-compliant construction makes it appropriate for projects where documented standards compliance is required by the mechanical contractor or inspection authority.

Key Features

• 30-gauge hot-dip galvanized steel construction for corrosion resistance
• Snap-lock seam end type allows tool-free field assembly
• 4-inch diameter by 24-inch length fits standard round duct fittings and boots
• Manufactured to ACCA and SMACNA applicable standards
• Round profile supports consistent airflow in supply and return branch runs

Compatibility

Designed as an OEM-style replacement and new-construction component for standard 4-inch round galvanized duct systems built to ACCA and SMACNA specifications.

Installation Notes

Installation should be performed by a licensed sheet metal mechanic or HVAC technician in accordance with SMACNA duct construction standards and local mechanical codes. Shut down and lock out the air handling unit before connecting or modifying any duct section. Use sheet metal screws and foil-backed mastic or UL 181-listed tape at joints per local code requirements. Avoid over-crimping the snap-lock seam, as deformation can reduce the effective diameter and restrict airflow.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Material Thickness: 30 Gauge
• Diameter: 4 inches
• Length: 24 inches
• End Type: Snap-Lock
• Pipe Type: Round
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: SL24-30GA_4IN