

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The SOUTHWARK METAL 44-1_7IN is a 1-Quad sheet metal duct damper sized for 7-inch round duct. It is used to manually regulate or shut off airflow in low-pressure residential and light commercial duct systems. The blade is constructed from hot dip galvanized steel, providing corrosion resistance for long service life in both supply and return air applications. This type of damper is a standard component in forced-air HVAC systems and is typically installed by licensed HVAC technicians or sheet metal contractors during new construction or duct modification work.
This damper is designed for use in 7-inch round sheet metal ductwork. It suits residential forced-air heating and cooling systems as well as light commercial applications where zone control or branch balancing is needed. The 1-Quad configuration is a common format in trunk-and-branch and radial duct layouts. Installation is straightforward for any sheet metal or HVAC trade professional familiar with standard duct fitting practices.
Designed as an OEM-style replacement or new-installation damper for 7-inch round sheet metal duct systems built to SMACNA and ACCA standards.
Installation should be performed by a qualified HVAC technician or sheet metal contractor. Shut down the air handling unit and confirm zero airflow before cutting into existing ductwork or inserting the damper. Secure the damper in the duct run using sheet metal screws and seal all joints with UL 181-listed mastic or foil tape in accordance with local mechanical codes. Verify damper blade operation and set to the desired position before returning the system to service.
Thanks for subscribing!
This email has been registered!