Southwark Metal 23_16X8 Duct Collar Takeoff 16x8 Offset

Product Description

The SOUTHWARK METAL 23_16X8 is a sheet metal trunk duct collar takeoff designed for use in forced-air HVAC duct systems. Fabricated from hot dip galvanized steel, this offset starting collar connects a main trunk duct to a branch run, providing a transition point at the beginning of a duct run. The 16 inch by 8 inch sizing suits common residential and light commercial trunk configurations. HVAC sheet metal installers and ductwork fabricators use this fitting to establish a tight, code-compliant connection off the main trunk. The offset body pattern accommodates installations where straight takeoffs are not practical due to spatial constraints.

This collar is used in forced-air ducted HVAC systems where branch duct runs originate from a rectangular main trunk. The starting collar application means this fitting is typically placed at the upstream end of a branch, directly off the trunk, rather than midrun. It is suited for residential new construction, light commercial buildouts, and duct retrofit projects where a 16 inch by 8 inch trunk connection is required. The offset body pattern is particularly useful in tight mechanical spaces where clearance limits a straight-line transition.

Key Features

• Hot dip galvanized steel construction resists corrosion in HVAC duct environments
• Offset body pattern accommodates space-restricted installation scenarios
• Starting collar type positions the fitting at the originating end of a branch duct run
• 16 inch by 8 inch nominal size fits common rectangular trunk duct dimensions
• Meets ACCA and SMACNA applicable standards for duct fitting fabrication

Compatibility

Designed as an OEM-style sheet metal fitting for use with standard rectangular trunk duct systems in residential and light commercial forced-air HVAC installations conforming to ACCA and SMACNA standards.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal worker. Shut down the air handling system and de-energize the air handler before cutting into any existing duct. Secure the collar to the trunk duct using sheet metal screws and seal all joints with UL 181-listed duct tape or mastic sealant in accordance with local mechanical codes and SMACNA guidelines. Follow ACCA Manual D duct design requirements for proper branch sizing and airflow balancing.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Size: 16 inches x 8 inches
• Body Pattern: Offset
• Type: Starting
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 23_16X8