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The SOUTHWARK METAL ws10312 is a short throat stackhead used in residential and light commercial HVAC duct systems. Stackheads connect vertical floor registers to the supply duct stack, allowing conditioned air to transition from the main trunk or stack into the living space. This unit measures 3.25 inches by 12 inches, making it a standard fit for floor-to-wall stack applications. HVAC installers and sheet metal contractors handle this fitting as part of new construction or duct replacement work.
This stackhead is suited for residential forced-air heating and cooling systems where a floor register feeds off a wall or floor stack. The short throat design reduces the overall height of the fitting, which is useful in applications with limited floor cavity depth or where a lower profile transition is required. It is typically installed during rough-in framing or duct system layout before flooring or wall finishes are completed.
Designed as an OEM-style replacement or new-construction fitting for residential forced-air duct stack systems using 3.25 inch by 12 inch floor registers.
Installation is typically performed by a licensed HVAC technician or sheet metal contractor. Shut down the air handling system before modifying or connecting any duct components. Secure the stackhead to the duct stack using sheet metal screws and seal all joints with UL-listed duct sealant or foil tape in accordance with local mechanical codes. Verify register opening alignment before finalizing flooring or wall finish work.
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