Southwark Metal 901228 90 Degree Adjustable Round Elbow 12 Inches 28 Gauge Galvanized Steel

Product Description

The Southwark Metal 901228 is a 12-inch, 90-degree adjustable round elbow made from 28-gauge hot-dipped galvanized steel meeting ASTM A653 CS Type B standards. This fitting is a core component in residential and commercial HVAC duct systems. It allows installers to make precise directional changes in round ductwork runs while maintaining airflow efficiency. HVAC technicians, sheet metal contractors, and mechanical tradespeople rely on fittings like this to navigate structural obstacles, route air distribution through tight spaces, and connect supply or return air branches. The 90-degree bend angle makes it one of the most commonly specified elbows in forced-air heating and cooling installations. The adjustable design accommodates field conditions where exact angles may vary slightly, reducing the need for custom fabrication on the job site. This elbow features a crimped male connection on one end and a straight female connection on the other, allowing it to slip directly into adjacent duct sections without additional adapters. The 4-piece assembly covers sizes from 3 inches through 20 inches in diameter, and this particular unit is sized at 12 inches. A 1/2-inch overlap is built into the connection points for riveting using 1/8-inch rivets, ensuring a secure, airtight joint. The galvanized steel coating provides corrosion resistance for long service life in both conditioned and unconditioned spaces. Manufactured in the USA, this product also carries a Prop 65 designation. With a weight of approximately 3.14 pounds, it is manageable for single-technician installation. This fitting is compatible with standard round duct systems and is sold as an individual unit.

• 12-inch diameter, 90-degree round adjustable elbow for HVAC ductwork installations
• Crimped male and straight female connections with 1/2-inch overlap for 1/8-inch rivet fastening
• 28-gauge hot-dipped galvanized steel per ASTM A653 CS Type B for corrosion resistance

Product Highlights

The Southwark Metal 901228 delivers a reliable, field-ready 90-degree duct elbow in 12-inch diameter for round duct systems, built from USA-made galvanized steel to ASTM standards. Its adjustable, multi-piece design speeds installation and reduces custom fabrication time on HVAC projects.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 901228

Technical Specifications

• Diameter: 12 inches
• Bend Angle: 90 Degrees
• Gauge: 28 GA
• Shape: Round
• Material: Hot Dipped Galvanized Steel
• Material Standard: ASTM A653 CS Type B
• Connection Type: Crimped Male and Straight Female
• Assembly: 4-Piece, 3 inches through 20 inches
• Overlap for Riveting: 1/2 inch, using 1/8 inch Rivets
• Galvanized Coating: Yes
• Weight: 3.14 pounds
• Country of Origin: USA
• Prop 65: Yes
• UOM: EA