Southwark Metal ATT_7IN Duct Takeoff 7 Inch Air-tite

Product Description

The Southwark Metal ATT_7IN is a 7-inch diameter Air-Tite sheet metal duct takeoff fabricated from hot-dip galvanized steel. Duct takeoffs connect branch ducts to main trunk lines in forced-air distribution systems, controlling airflow routing throughout a structure. The Air-Tite design creates a tighter seal at the trunk connection point, reducing air leakage and improving system efficiency. This fitting is intended for installation by licensed HVAC technicians and sheet metal contractors working on residential and light commercial duct systems.

This takeoff is suited for new construction and retrofit duct fabrication projects where a 7-inch branch run is required off a main trunk. The Air-Tite construction meets the tighter leakage tolerances increasingly specified in energy codes and ACCA and SMACNA standards. It is appropriate for supply-side distribution systems in forced-air gas, heat pump, and air conditioning applications.

Key Features

• 7-inch diameter opening sized for standard branch duct runs
• Hot-dip galvanized steel construction resists corrosion in attic, crawlspace, and mechanical room environments
• Air-Tite design minimizes air leakage at the trunk connection
• Fabricated to ACCA and SMACNA applicable standards
• Compatible with round branch duct and flexible duct transitions

Compatibility

Designed as an OEM-style replacement and new-construction fitting for 7-inch branch connections in residential and light commercial sheet metal duct systems built to ACCA and SMACNA standards.

Installation Notes

Installation should be performed by a licensed HVAC technician or sheet metal contractor. Power down the air handling unit and verify the system is not under pressure before cutting into the trunk line. Secure the takeoff with sheet metal screws and seal all joints with UL-listed duct sealant or mastic per SMACNA guidelines to maintain Air-Tite performance. Follow local mechanical codes for duct support and clearance requirements.

Technical Specifications

• Diameter: 7 inches
• Material: Hot Dip Galvanized Steel
• Type: Air-Tite
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: Southwark Metal
• Manufacturer Part Number: ATT_7IN