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The SOUTHWARK METAL 97fc4 is a 4-inch flex connector designed to couple two sections of insulated flexible duct in HVAC distribution systems. It provides a secure, airtight transition point between flex duct runs, maintaining airflow continuity without the rigidity of sheet metal fittings. This type of connector is a standard component in residential and light commercial duct installations, typically installed by licensed HVAC technicians during new construction or system retrofit work. Its straightforward design keeps installation time low while ensuring a reliable connection at the duct joint.
The 97fc4 is suited for use in residential and light commercial forced-air HVAC systems where flexible duct is the primary distribution method. It is commonly installed in attic, crawlspace, and mechanical room applications where flex duct runs connect to supply or return branches. This connector bridges two insulated flex duct sections at a 4-inch diameter, making it a practical solution for extending runs or repairing existing ductwork.
Comparable to Snappy item 381-04. Designed as an OEM-style replacement or direct substitute for standard 4-inch flex duct connectors used in residential and light commercial forced-air HVAC systems.
Installation is performed by licensed HVAC technicians. Power down the air handler or furnace at the disconnect before beginning duct work. Secure each end of the flex connector with an approved clamp or draw band and seal with mastic or UL 181-rated tape in accordance with local mechanical codes. Do not over-compress flexible duct at the connection point, as this restricts airflow and reduces system efficiency.
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