Southwark Metal EP1310 Square to Round Takeoff 10 Inch

Product Description

The SOUTHWARK METAL EP1310 is a sheet metal square-to-round takeoff fitting designed for connecting rectangular duct systems to round branch ducts. Built from hot-dipped galvanized steel, this adjustable fitting provides a secure, low-leakage transition in supply and return air distribution systems. With a 10-inch frame size and a 12-inch Size A dimension, it is engineered to meet ACCA and SMACNA standards for duct construction quality. Licensed HVAC technicians and sheet metal contractors rely on this type of fitting during trunk-and-branch duct layout in new construction and retrofit applications.

This fitting is used in residential and light commercial HVAC duct systems where a rectangular main trunk must branch off to a round collar feeding a supply or return register. The adjustable design allows the installer to position the takeoff at the correct angle along the duct trunk, reducing the need for additional fittings. It is a common component in forced-air heating and cooling system ductwork assembled to SMACNA and ACCA Manual D standards.

Key Features

• Adjustable square-to-round design allows flexible positioning along the main duct trunk
• Hot-dipped galvanized steel construction resists corrosion in conditioned and unconditioned spaces
• Meets ACCA and SMACNA duct construction standards
• 10-inch frame size with 12-inch Size A dimension for versatile branch connections
• Compatible with standard round collar branch ducts in trunk-and-branch systems

Compatibility

Designed as an OEM-style sheet metal duct fitting for use in residential and light commercial forced-air HVAC duct systems built to ACCA and SMACNA standards.

Installation Notes

Installation should be performed by a licensed sheet metal contractor or HVAC technician. Power down the air handling equipment before cutting into existing ductwork. Seal all connections with approved duct sealant or metal-backed tape in accordance with local mechanical codes and SMACNA installation guidelines. Do not overtighten sheet metal screws at the collar connection, as this can distort the fitting and reduce airflow performance.

Technical Specifications

• Item Type: Square to Round Takeoff
• Accessory Type: Adjustable, Square to Round
• Frame Size: 10 inches
• Size A: 12 inches
• Material: Hot Dipped Galvanized Steel
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: EP1310