Southwark Metal 122SC-6 Ductboard Snaplock Collar 6 in

Product Description

The SOUTHWARK METAL 122SC-6 is a ductboard snaplock collar designed for connecting round duct to ductboard plenum or duct systems. The collar measures 6 inches in diameter with a flange thickness range of 1.5 to 2 inches, allowing it to seat securely against standard ductboard panels. This fitting is a staple in residential and light commercial HVAC fabrication and is typically installed by sheet metal workers and HVAC technicians during system assembly or retrofit work.

This snaplock collar is suited for low-pressure supply and return air applications where ductboard construction is used. The snaplock design speeds up field assembly by eliminating the need for separate fasteners at the collar-to-duct connection point. It is commonly used in attic, crawlspace, and mechanical room installations where ductboard plenums and trunk lines are fabricated on the job site.

Key Features

• 6-inch diameter opening sized for standard round duct connections
• Snaplock design allows fast, tool-free engagement at the collar
• 1.5 to 2 inch flange depth accommodates standard ductboard panel thickness
• Designed for low-pressure HVAC air distribution systems
• Compatible with ductboard plenum and trunk-line fabrication

Compatibility

Designed as an OEM-style replacement and new-construction fitting for residential and light commercial ductboard HVAC duct systems requiring a 6-inch round collar connection.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal fabricator. Power down the air handling unit and confirm the system is depressurized before cutting into existing ductboard assemblies. Insert the collar flange into the ductboard cutout and engage the snaplock tabs to secure the fitting. Seal all joints with approved HVAC foil tape or mastic sealant per local mechanical codes.

Technical Specifications

• Collar Diameter: 6 inches
• Flange Thickness Range: 1.5 to 2 inches

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 122SC-6