Southwark Metal 10L1420148 Universal Stackhead

Product Description

The SOUTHWARK METAL 10L1420148 is a 10L Universal Stackhead fitting used in residential and light commercial HVAC duct systems. This stackhead connects a larger plenum or trunk opening to a smaller stack outlet, transitioning from a 14 x 20 inch face down to a 14 x 8 inch stack opening. It is designed for use in forced-air heating and cooling distribution systems where vertical wall stacks feed supply air to registers. Sheet metal contractors and HVAC installers work with this fitting during new construction and system retrofits.

This stackhead is suited for residential forced-air systems where a floor or wall stack feeds a supply register from a central trunk line. The 10L designation identifies it as part of a universal stackhead series, making it a common choice for standardized duct layouts. It fits into typical stud-bay stack installations where the duct transitions from a wider plenum face to a narrower wall stack run.

Key Features

• Transitions from a 14 x 20 inch opening to a 14 x 8 inch stack outlet
• Universal 10L stackhead design for standardized forced-air duct systems
• Engineered for vertical wall stack supply air applications
• Fabricated by Southwark Metal, a recognized name in sheet metal duct components

Compatibility

Designed as an OEM-style replacement or new-installation fitting for residential and light commercial forced-air duct systems using standard 10L universal stackhead configurations.

Installation Notes

Installation of this stackhead should be performed by a licensed sheet metal contractor or qualified HVAC technician. Power down the air handling system before beginning any duct modification work. Secure all joints with appropriate fasteners and seal with duct mastic or UL-listed foil tape per local mechanical code requirements. Verify that stack dimensions match the existing trunk and register boot before final installation.

Technical Specifications

• Inlet Size: 14 x 20 inches
• Outlet Size: 14 x 8 inches
• Series: 10L Universal Stackhead

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 10L1420148