Southwark Metal 582018 3-piece Duct Reducer 20 Inches X 18 Inches No Crimp Galvanized Steel

Product Description

The Southwark Metal 582018 is a 3-piece duct reducer designed for HVAC sheet metal ductwork installations where a transition from a 20-inch duct to an 18-inch duct is needed. This reducer features a no-crimp end design, which allows it to connect directly to other no-crimp fittings and duct sections without requiring an additional crimping step during installation. That saves time on the job and reduces the number of extra fittings needed at the connection point. The 582018 is fabricated from hot-dipped galvanized steel meeting ASTM A653 CS Type B standards. This material standard ensures consistent coating adhesion and base metal quality, making the fitting suitable for standard residential and light commercial forced-air systems. The galvanized coating protects against corrosion and rust, extending the service life of the duct system even in humid or unconditioned spaces such as attics, crawl spaces, and mechanical rooms. The fitting is manufactured in the USA and carries a Prop 65 designation, which is relevant for jobs in California. At 28 gauge, the steel provides a balance of rigidity and workability that HVAC sheet metal installers expect from a quality trunk-line reducer. The reducer measures 20 inches in length and 20 inches in width at the large end, stepping down to 18 inches at the small end, with a height of 10.75 inches. The unit weight is 4 pounds. This fitting is sold individually and is part of Southwark's Product Family 58, a well-known line of galvanized sheet metal duct fittings used by HVAC contractors across residential and commercial projects. HVAC technicians, sheet metal workers, and mechanical contractors working on forced-air systems will find this reducer a reliable and code-compliant solution for reducing duct diameter in a trunk line or branch run.

• No-crimp end design for fast, tool-free connections to matching duct and fittings
• Hot-dipped galvanized steel per ASTM A653 CS Type B for corrosion resistance and long service life
• Made in the USA at 28 gauge for consistent quality and workability

Product Highlights

The Southwark Metal 582018 3-piece duct reducer delivers a reliable 20-inch to 18-inch transition in galvanized steel with a no-crimp end, making it a practical choice for HVAC sheet metal contractors who need a fast, durable duct connection on residential and commercial jobs.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 582018

Technical Specifications

• Size: 20 inches to 18 inches
• Length: 20 inches
• Width: 20 inches
• Height: 10.75 inches
• Weight: 4 pounds
• Gauge: 28 GA
• Material: Galvanized Steel
• Coating: Hot-Dipped Galvanized per ASTM A653 CS Type B
• End Type: No Crimp
• Pieces: 3-Piece
• Country of Origin: USA
• UPC: 099274520727
• Unit of Measure: Each
• Prop 65: Yes