Southwark Metal 122SC-20 Ductboard Snaplock Collar 20 in

Product Description

The SOUTHWARK METAL 122SC-20 is a ductboard snaplock collar designed for use in low-pressure air distribution systems. This fitting creates a secure, snap-locking connection point where ductboard panels meet a collar, eliminating the need for additional fasteners at the joint. The collar measures 20 inches and is sized to accommodate ductboard material ranging from 1.5 inches to 2 inches in thickness. HVAC installers and sheet metal mechanics rely on this type of collar when fabricating or extending ductboard duct systems in residential and light commercial applications.

This snaplock collar is suited for new construction and replacement work in residential and light commercial HVAC duct systems built with ductboard. It is used at the transition point between rigid ductboard runs and collar connections, providing a clean, sealed fitting that supports proper airflow management. Installers working with fiberglass ductboard systems will find this collar appropriate for standard trunk-and-branch or plenum-to-run configurations where a secure mechanical snap connection is required.

Key Features

• Snaplock design secures ductboard panels without additional mechanical fasteners at the collar joint
• Compatible with ductboard thickness from 1.5 inches to 2 inches
• 20-inch collar size for larger duct runs and trunk connections
• Designed for low-pressure air distribution systems typical in residential and light commercial HVAC
• Sheet metal construction provides dimensional stability at the connection point

Compatibility

Designed as an OEM-style replacement fitting for ductboard air distribution systems using snaplock collar connections in residential and light commercial HVAC installations.

Installation Notes

Installation should be performed by a qualified HVAC technician or sheet metal mechanic familiar with ductboard fabrication practices. Shut down the air handling unit and confirm the system is de-energized before beginning any duct modification or collar installation. Ductboard edges should be clean and free of damage before seating the snaplock collar to ensure a proper seal. All ductboard joints and collar connections should be sealed in accordance with local mechanical codes and SMACNA ductboard installation guidelines.

Technical Specifications

• Collar Size: 20 inches
• Compatible Ductboard Thickness: 1.5 inches to 2 inches
• Connection Type: Snaplock

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 122SC-20