Southwark Metal 11494 Long Collar with Damper 4 Inch

Product Description

The SOUTHWARK METAL 11494 is a 4-inch long collar with an integrated damper, designed for use in residential and light commercial HVAC duct systems. The long collar configuration allows for a secure, extended connection point at a register or diffuser opening, while the built-in damper provides basic airflow control at the boot or transition point. This fitting is sold as a single unit and is typically installed by HVAC technicians or sheet metal mechanics during new duct installations or duct modification work.

This collar is suited for supply-air duct branch takeoffs or boot connections where a longer collar depth is needed for proper seating and fastening. The integrated damper allows the installer to regulate or shut off airflow through that individual branch run without requiring a separate volume control damper. It is appropriate for residential forced-air systems and light commercial ducted applications where a 4-inch round collar is specified.

Key Features

• 4-inch collar size for standard branch duct connections
• Long collar design provides added depth for secure fitting and fastening
• Integrated damper allows on-site airflow adjustment without additional hardware
• Sold as a single unit

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial forced-air duct systems requiring a 4-inch long collar with damper.

Installation Notes

Installation should be performed by a qualified HVAC technician or sheet metal mechanic in accordance with applicable mechanical codes. Power down the air handler or furnace before beginning duct work. Secure the collar to the duct or boot with sheet metal screws and seal all joints with listed duct sealant or metal-backed tape per local code requirements. Do not restrict or permanently block the damper blade in a closed position.